#11: implement MTA-STS, TLS-RPT & Autoconfig HTTP services

migrations/0003_create_report_tables.down.sql

@@ -0,0 +1,4 @@
+DROP TABLE IF EXISTS tls_rpt_report_policies;
+DROP TABLE IF EXISTS tls_rpt_reports;
+DROP TABLE IF EXISTS dmarc_report_records;
+DROP TABLE IF EXISTS dmarc_reports;

migrations/0003_create_report_tables.up.sql

@@ -0,0 +1,49 @@
+-- 0003_create_report_tables.up.sql
+-- Tables for DMARC aggregate (RUA) records and TLS-RPT failure reports
+
+CREATE TABLE IF NOT EXISTS dmarc_reports (
+    id           UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    domain_id    UUID REFERENCES domains(id) ON DELETE CASCADE,
+    org_name     VARCHAR(255) NOT NULL,
+    report_id    VARCHAR(255) NOT NULL,
+    domain       VARCHAR(255) NOT NULL DEFAULT '',
+    date_begin   TIMESTAMPTZ,
+    date_end     TIMESTAMPTZ,
+    raw_xml      TEXT,
+    summary      JSONB,
+    created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+ALTER TABLE dmarc_reports ALTER COLUMN domain_id DROP NOT NULL;
+ALTER TABLE dmarc_reports ADD COLUMN IF NOT EXISTS domain VARCHAR(255) NOT NULL DEFAULT '';
+ALTER TABLE dmarc_reports ADD COLUMN IF NOT EXISTS date_range_begin TIMESTAMPTZ;
+ALTER TABLE dmarc_reports ADD COLUMN IF NOT EXISTS date_range_end TIMESTAMPTZ;
+
+CREATE TABLE IF NOT EXISTS dmarc_report_records (
+    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    report_id   UUID NOT NULL REFERENCES dmarc_reports(id) ON DELETE CASCADE,
+    source_ip   INET NOT NULL,
+    count       INT NOT NULL,
+    disposition VARCHAR(32) NOT NULL,
+    dkim_result VARCHAR(32) NOT NULL,
+    spf_result  VARCHAR(32) NOT NULL,
+    header_from VARCHAR(255) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS tls_rpt_reports (
+    id                UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    organization_name VARCHAR(255) NOT NULL,
+    report_id         VARCHAR(255) NOT NULL,
+    domain            VARCHAR(255) NOT NULL,
+    date_range_begin  TIMESTAMPTZ NOT NULL,
+    date_range_end    TIMESTAMPTZ NOT NULL,
+    created_at        TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS tls_rpt_report_policies (
+    id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    report_id     UUID NOT NULL REFERENCES tls_rpt_reports(id) ON DELETE CASCADE,
+    policy_type   VARCHAR(64) NOT NULL,
+    success_count INT NOT NULL DEFAULT 0,
+    failure_count INT NOT NULL DEFAULT 0
+);

services/protocols/cmd/lambdamail-protocols/main.go

@@ -13,11 +13,11 @@ import (
 	gosmtp "github.com/emersion/go-smtp"
 
 	"lambdamail/protocols/internal/application/usecase"
-	"lambdamail/protocols/internal/health"
 	"lambdamail/protocols/internal/infrastructure/diskstorage"
 	"lambdamail/protocols/internal/infrastructure/postgres"
 	tlsprovider "lambdamail/protocols/internal/infrastructure/tls"
 	imappresentation "lambdamail/protocols/internal/presentation/imap"
+	httppresentation "lambdamail/protocols/internal/presentation/http"
 	managesievepresentation "lambdamail/protocols/internal/presentation/managesieve"
 	pop3presentation "lambdamail/protocols/internal/presentation/pop3"
 	smtppresentation "lambdamail/protocols/internal/presentation/smtp"
@@ -134,11 +134,14 @@ func main() {
 		}
 	}()
 
-	handler := health.Handler(func() error { return pool.Ping(ctx) })
+	reportRepo := postgres.NewReportRepository(pool)
+	reportUseCase := usecase.NewIngestReportsUseCase(reportRepo)
+	router := httppresentation.NewRouter(reportUseCase, func() error { return pool.Ping(ctx) })
+
 	addr := ":8080"
-	log.Printf("lambdamail-protocols health listening on %s", addr)
+	log.Printf("lambdamail-protocols HTTP service listening on %s", addr)
-	if err := http.ListenAndServe(addr, handler); err != nil {
+	if err := http.ListenAndServe(addr, router); err != nil {
-		log.Fatalf("serve: %v", err)
+		log.Fatalf("http serve: %v", err)
 	}
 }
 

services/protocols/internal/application/port/report_repository.go

@@ -0,0 +1,13 @@
+package port
+
+import (
+	"context"
+
+	"lambdamail/protocols/internal/domain/entity"
+)
+
+// ReportRepository manages storage for ingested DMARC and TLS-RPT reports.
+type ReportRepository interface {
+	SaveDmarcReport(ctx context.Context, report *entity.DmarcReport) error
+	SaveTlsRptReport(ctx context.Context, report *entity.TlsRptReport) error
+}

services/protocols/internal/application/usecase/ingest_reports.go

@@ -0,0 +1,47 @@
+package usecase
+
+import (
+	"context"
+	"fmt"
+
+	"lambdamail/protocols/internal/application/port"
+	"lambdamail/protocols/internal/domain/entity"
+)
+
+type IngestReportsUseCase struct {
+	reportRepo port.ReportRepository
+}
+
+func NewIngestReportsUseCase(reportRepo port.ReportRepository) *IngestReportsUseCase {
+	return &IngestReportsUseCase{reportRepo: reportRepo}
+}
+
+func (uc *IngestReportsUseCase) IngestDmarc(ctx context.Context, payload []byte) (*entity.DmarcReport, error) {
+	report, err := entity.ParseDmarcXmlReport(payload)
+	if err != nil {
+		return nil, fmt.Errorf("parse dmarc report: %w", err)
+	}
+
+	if uc.reportRepo != nil {
+		if err := uc.reportRepo.SaveDmarcReport(ctx, report); err != nil {
+			return nil, fmt.Errorf("save dmarc report: %w", err)
+		}
+	}
+
+	return report, nil
+}
+
+func (uc *IngestReportsUseCase) IngestTlsRpt(ctx context.Context, payload []byte) (*entity.TlsRptReport, error) {
+	report, err := entity.ParseTlsRptReport(payload)
+	if err != nil {
+		return nil, fmt.Errorf("parse tls-rpt report: %w", err)
+	}
+
+	if uc.reportRepo != nil {
+		if err := uc.reportRepo.SaveTlsRptReport(ctx, report); err != nil {
+			return nil, fmt.Errorf("save tls-rpt report: %w", err)
+		}
+	}
+
+	return report, nil
+}

services/protocols/internal/application/usecase/ingest_reports_test.go

@@ -0,0 +1,62 @@
+package usecase
+
+import (
+	"context"
+	"testing"
+
+	"lambdamail/protocols/internal/domain/entity"
+)
+
+type fakeReportRepository struct {
+	dmarcReports  []*entity.DmarcReport
+	tlsRptReports []*entity.TlsRptReport
+}
+
+func (f *fakeReportRepository) SaveDmarcReport(_ context.Context, report *entity.DmarcReport) error {
+	f.dmarcReports = append(f.dmarcReports, report)
+	return nil
+}
+
+func (f *fakeReportRepository) SaveTlsRptReport(_ context.Context, report *entity.TlsRptReport) error {
+	f.tlsRptReports = append(f.tlsRptReports, report)
+	return nil
+}
+
+func TestIngestReportsUseCase_IngestDmarcAndTlsRpt(t *testing.T) {
+	repo := &fakeReportRepository{}
+	uc := NewIngestReportsUseCase(repo)
+
+	ctx := context.Background()
+
+	// DMARC XML
+	dmarcPayload := `<?xml version="1.0"?>
+<feedback>
+  <report_metadata><org_name>test.org</org_name><report_id>r1</report_id><date_range><begin>100</begin><end>200</end></date_range></report_metadata>
+  <policy_published><domain>test.domain</domain></policy_published>
+  <record><row><source_ip>1.2.3.4</source_ip><count>5</count><policy_evaluated><disposition>none</disposition><dkim>pass</dkim><spf>pass</spf></policy_evaluated></row><identifiers><header_from>test.domain</header_from></identifiers></record>
+</feedback>`
+
+	report1, err := uc.IngestDmarc(ctx, []byte(dmarcPayload))
+	if err != nil || report1.OrgName != "test.org" {
+		t.Fatalf("IngestDmarc: %v", err)
+	}
+	if len(repo.dmarcReports) != 1 {
+		t.Errorf("dmarcReports count = %d, want 1", len(repo.dmarcReports))
+	}
+
+	// TLS-RPT JSON
+	tlsRptPayload := `{
+		"organization-name": "test.org",
+		"report-id": "r2",
+		"date-range": {"start-datetime": "2026-07-25T00:00:00Z", "end-datetime": "2026-07-25T23:59:59Z"},
+		"policies": [{"policy": {"policy-type": "sts", "domain": "test.domain"}, "summary": {"total-successful-session-count": 10, "total-failure-session-count": 0}}]
+	}`
+
+	report2, err := uc.IngestTlsRpt(ctx, []byte(tlsRptPayload))
+	if err != nil || report2.OrganizationName != "test.org" {
+		t.Fatalf("IngestTlsRpt: %v", err)
+	}
+	if len(repo.tlsRptReports) != 1 {
+		t.Errorf("tlsRptReports count = %d, want 1", len(repo.tlsRptReports))
+	}
+}

services/protocols/internal/domain/entity/dmarc_report.go

@@ -0,0 +1,103 @@
+package entity
+
+import (
+	"bytes"
+	"compress/gzip"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"time"
+)
+
+type DmarcRecord struct {
+	SourceIP        string
+	Count           int
+	Disposition     string
+	DKIMResult      string
+	SPFResult       string
+	HeaderFrom      string
+}
+
+type DmarcReport struct {
+	OrgName        string
+	ReportID       string
+	Domain         string
+	DateRangeBegin time.Time
+	DateRangeEnd   time.Time
+	Records        []DmarcRecord
+}
+
+type dmarcXmlReport struct {
+	ReportMetadata struct {
+		OrgName   string `xml:"org_name"`
+		ReportID  string `xml:"report_id"`
+		DateRange struct {
+			Begin int64 `xml:"begin"`
+			End   int64 `xml:"end"`
+		} `xml:"date_range"`
+	} `xml:"report_metadata"`
+	PolicyPublished struct {
+		Domain string `xml:"domain"`
+	} `xml:"policy_published"`
+	Record []struct {
+		Row struct {
+			SourceIP string `xml:"source_ip"`
+			Count    int    `xml:"count"`
+			PolicyEvaluated struct {
+				Disposition string `xml:"disposition"`
+				DKIM        string `xml:"dkim"`
+				SPF         string `xml:"spf"`
+			} `xml:"policy_evaluated"`
+		} `xml:"row"`
+		Identifiers struct {
+			HeaderFrom string `xml:"header_from"`
+		} `xml:"identifiers"`
+	} `xml:"record"`
+}
+
+// ParseDmarcXmlReport parses raw XML or gzipped XML DMARC aggregate report.
+func ParseDmarcXmlReport(payload []byte) (*DmarcReport, error) {
+	data := payload
+	if isGzip(payload) {
+		gz, err := gzip.NewReader(bytes.NewReader(payload))
+		if err != nil {
+			return nil, fmt.Errorf("gzip reader: %w", err)
+		}
+		defer gz.Close()
+		decompressed, err := io.ReadAll(gz)
+		if err != nil {
+			return nil, fmt.Errorf("decompress gzip: %w", err)
+		}
+		data = decompressed
+	}
+
+	var parsed dmarcXmlReport
+	if err := xml.Unmarshal(data, &parsed); err != nil {
+		return nil, fmt.Errorf("unmarshal dmarc xml: %w", err)
+	}
+
+	report := &DmarcReport{
+		OrgName:        parsed.ReportMetadata.OrgName,
+		ReportID:       parsed.ReportMetadata.ReportID,
+		Domain:         parsed.PolicyPublished.Domain,
+		DateRangeBegin: time.Unix(parsed.ReportMetadata.DateRange.Begin, 0),
+		DateRangeEnd:   time.Unix(parsed.ReportMetadata.DateRange.End, 0),
+	}
+
+	for _, r := range parsed.Record {
+		report.Records = append(report.Records, DmarcRecord{
+			SourceIP:    r.Row.SourceIP,
+			Count:       r.Row.Count,
+			Disposition: r.Row.PolicyEvaluated.Disposition,
+			DKIMResult:  r.Row.PolicyEvaluated.DKIM,
+			SPFResult:   r.Row.PolicyEvaluated.SPF,
+			HeaderFrom:  r.Identifiers.HeaderFrom,
+		})
+	}
+
+	return report, nil
+}
+
+func isGzip(payload []byte) bool {
+	return len(payload) >= 2 && payload[0] == 0x1f && payload[1] == 0x8b
+}

services/protocols/internal/domain/entity/dmarc_report_test.go

@@ -0,0 +1,96 @@
+package entity
+
+import (
+	"bytes"
+	"compress/gzip"
+	"testing"
+)
+
+func TestParseDmarcXmlReport_ValidXML(t *testing.T) {
+	xmlData := `<?xml version="1.0"?>
+<feedback>
+  <report_metadata>
+    <org_name>google.com</org_name>
+    <report_id>123456</report_id>
+    <date_range>
+      <begin>1609459200</begin>
+      <end>1609545600</end>
+    </date_range>
+  </report_metadata>
+  <policy_published>
+    <domain>example.test</domain>
+  </policy_published>
+  <record>
+    <row>
+      <source_ip>198.51.100.1</source_ip>
+      <count>10</count>
+      <policy_evaluated>
+        <disposition>none</disposition>
+        <dkim>pass</dkim>
+        <spf>pass</spf>
+      </policy_evaluated>
+    </row>
+    <identifiers>
+      <header_from>example.test</header_from>
+    </identifiers>
+  </record>
+</feedback>`
+
+	report, err := ParseDmarcXmlReport([]byte(xmlData))
+	if err != nil {
+		t.Fatalf("ParseDmarcXmlReport: %v", err)
+	}
+
+	if report.OrgName != "google.com" || report.Domain != "example.test" {
+		t.Errorf("unexpected report metadata: %+v", report)
+	}
+	if len(report.Records) != 1 || report.Records[0].Count != 10 {
+		t.Errorf("unexpected records: %+v", report.Records)
+	}
+
+	// Test Gzip handling
+	var gzBuf bytes.Buffer
+	gw := gzip.NewWriter(&gzBuf)
+	gw.Write([]byte(xmlData))
+	gw.Close()
+
+	gzReport, err := ParseDmarcXmlReport(gzBuf.Bytes())
+	if err != nil || gzReport.OrgName != "google.com" {
+		t.Fatalf("ParseDmarcXmlReport gzip: %v", err)
+	}
+}
+
+func TestParseTlsRptReport_ValidJSON(t *testing.T) {
+	jsonData := `{
+		"organization-name": "Google LLC",
+		"report-id": "2026-07-25-001",
+		"date-range": {
+			"start-datetime": "2026-07-25T00:00:00Z",
+			"end-datetime": "2026-07-25T23:59:59Z"
+		},
+		"policies": [
+			{
+				"policy": {
+					"policy-type": "sts",
+					"domain": "example.test"
+				},
+				"summary": {
+					"total-successful-session-count": 100,
+					"total-failure-session-count": 0
+				}
+			}
+		]
+	}`
+
+	report, err := ParseTlsRptReport([]byte(jsonData))
+	if err != nil {
+		t.Fatalf("ParseTlsRptReport: %v", err)
+	}
+
+	if report.OrganizationName != "Google LLC" || report.Domain != "example.test" {
+		t.Errorf("unexpected tlsrpt metadata: %+v", report)
+	}
+	if len(report.Policies) != 1 || report.Policies[0].SuccessCount != 100 {
+		t.Errorf("unexpected policies: %+v", report.Policies)
+	}
+}

services/protocols/internal/domain/entity/tls_rpt_report.go

@@ -0,0 +1,92 @@
+package entity
+
+import (
+	"bytes"
+	"compress/gzip"
+	"encoding/json"
+	"fmt"
+	"io"
+	"time"
+)
+
+type TlsRptPolicy struct {
+	PolicyType   string
+	SuccessCount int
+	FailureCount int
+}
+
+type TlsRptReport struct {
+	OrganizationName string
+	ReportID         string
+	Domain           string
+	DateRangeBegin   time.Time
+	DateRangeEnd     time.Time
+	Policies         []TlsRptPolicy
+}
+
+type tlsRptJsonReport struct {
+	OrganizationName string `json:"organization-name"`
+	ReportID         string `json:"report-id"`
+	DateRange        struct {
+		StartDatetime string `json:"start-datetime"`
+		EndDatetime   string `json:"end-datetime"`
+	} `json:"date-range"`
+	Policies []struct {
+		Policy struct {
+			PolicyType string `json:"policy-type"`
+			Domain     string `json:"domain"`
+		} `json:"policy"`
+		Summary struct {
+			TotalSuccessfulSessionCount int `json:"total-successful-session-count"`
+			TotalFailureSessionCount    int `json:"total-failure-session-count"`
+		} `json:"summary"`
+	} `json:"policies"`
+}
+
+// ParseTlsRptReport parses JSON or gzipped JSON TLS-RPT report.
+func ParseTlsRptReport(payload []byte) (*TlsRptReport, error) {
+	data := payload
+	if isGzip(payload) {
+		gz, err := gzip.NewReader(bytes.NewReader(payload))
+		if err != nil {
+			return nil, fmt.Errorf("gzip reader: %w", err)
+		}
+		defer gz.Close()
+		decompressed, err := io.ReadAll(gz)
+		if err != nil {
+			return nil, fmt.Errorf("decompress gzip: %w", err)
+		}
+		data = decompressed
+	}
+
+	var parsed tlsRptJsonReport
+	if err := json.Unmarshal(data, &parsed); err != nil {
+		return nil, fmt.Errorf("unmarshal tls-rpt json: %w", err)
+	}
+
+	beginTime, _ := time.Parse(time.RFC3339, parsed.DateRange.StartDatetime)
+	endTime, _ := time.Parse(time.RFC3339, parsed.DateRange.EndDatetime)
+
+	domain := ""
+	if len(parsed.Policies) > 0 {
+		domain = parsed.Policies[0].Policy.Domain
+	}
+
+	report := &TlsRptReport{
+		OrganizationName: parsed.OrganizationName,
+		ReportID:         parsed.ReportID,
+		Domain:           domain,
+		DateRangeBegin:   beginTime,
+		DateRangeEnd:     endTime,
+	}
+
+	for _, p := range parsed.Policies {
+		report.Policies = append(report.Policies, TlsRptPolicy{
+			PolicyType:   p.Policy.PolicyType,
+			SuccessCount: p.Summary.TotalSuccessfulSessionCount,
+			FailureCount: p.Summary.TotalFailureSessionCount,
+		})
+	}
+
+	return report, nil
+}

services/protocols/internal/domain/valueobject/autoconfig_xml.go

@@ -0,0 +1,79 @@
+package valueobject
+
+import (
+	"fmt"
+)
+
+// BuildThunderbirdAutoconfigXML generates Mozilla Thunderbird config-v1.1 XML payload.
+func BuildThunderbirdAutoconfigXML(domainName, mailHost string) string {
+	if mailHost == "" {
+		mailHost = fmt.Sprintf("mail.%s", domainName)
+	}
+
+	return fmt.Sprintf(`<?xml version="1.0" encoding="UTF-8"?>
+<clientConfig version="1.1">
+  <emailProvider id="%s">
+    <domain>%s</domain>
+    <displayName>LambdaMail - %s</displayName>
+    <displayShortName>%s</displayShortName>
+    <incomingServer type="imap">
+      <hostname>%s</hostname>
+      <port>993</port>
+      <socketType>SSL</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%%EMAILADDRESS%%</username>
+    </incomingServer>
+    <incomingServer type="pop3">
+      <hostname>%s</hostname>
+      <port>995</port>
+      <socketType>SSL</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%%EMAILADDRESS%%</username>
+    </incomingServer>
+    <outgoingServer type="smtp">
+      <hostname>%s</hostname>
+      <port>587</port>
+      <socketType>STARTTLS</socketType>
+      <authentication>password-cleartext</authentication>
+      <username>%%EMAILADDRESS%%</username>
+    </outgoingServer>
+  </emailProvider>
+</clientConfig>`, domainName, domainName, domainName, domainName, mailHost, mailHost, mailHost)
+}
+
+// BuildOutlookAutodiscoverXML generates Microsoft POX Autodiscover response XML.
+func BuildOutlookAutodiscoverXML(domainName, mailHost, emailAddress string) string {
+	if mailHost == "" {
+		mailHost = fmt.Sprintf("mail.%s", domainName)
+	}
+
+	return fmt.Sprintf(`<?xml version="1.0" encoding="utf-8"?>
+<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/responseschema/2006">
+  <Response xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a">
+    <User>
+      <DisplayName>%s</DisplayName>
+    </User>
+    <Account>
+      <AccountType>email</AccountType>
+      <Action>settings</Action>
+      <Protocol>
+        <Type>IMAP</Type>
+        <Server>%s</Server>
+        <Port>993</Port>
+        <SSL>on</SSL>
+        <AuthRequired>on</AuthRequired>
+        <LoginName>%s</LoginName>
+      </Protocol>
+      <Protocol>
+        <Type>SMTP</Type>
+        <Server>%s</Server>
+        <Port>587</Port>
+        <SSL>off</SSL>
+        <Encryption>TLS</Encryption>
+        <AuthRequired>on</AuthRequired>
+        <LoginName>%s</LoginName>
+      </Protocol>
+    </Account>
+  </Response>
+</Autodiscover>`, emailAddress, mailHost, emailAddress, mailHost, emailAddress)
+}

services/protocols/internal/domain/valueobject/autoconfig_xml_test.go

@@ -0,0 +1,26 @@
+package valueobject
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestBuildThunderbirdAutoconfigXML(t *testing.T) {
+	xml := BuildThunderbirdAutoconfigXML("example.test", "mail.example.test")
+	if !strings.Contains(xml, "<hostname>mail.example.test</hostname>") {
+		t.Errorf("missing mail host: %s", xml)
+	}
+	if !strings.Contains(xml, "<port>993</port>") {
+		t.Errorf("missing port 993: %s", xml)
+	}
+}
+
+func TestBuildOutlookAutodiscoverXML(t *testing.T) {
+	xml := BuildOutlookAutodiscoverXML("example.test", "mail.example.test", "user@example.test")
+	if !strings.Contains(xml, "<Server>mail.example.test</Server>") {
+		t.Errorf("missing Server: %s", xml)
+	}
+	if !strings.Contains(xml, "<LoginName>user@example.test</LoginName>") {
+		t.Errorf("missing LoginName: %s", xml)
+	}
+}

services/protocols/internal/domain/valueobject/mta_sts_policy.go

@@ -0,0 +1,44 @@
+package valueobject
+
+import (
+	"fmt"
+	"strings"
+)
+
+type MtaStsMode string
+
+const (
+	MtaStsModeTesting MtaStsMode = "testing"
+	MtaStsModeEnforce MtaStsMode = "enforce"
+	MtaStsModeNone    MtaStsMode = "none"
+)
+
+type MtaStsPolicy struct {
+	Version string
+	Mode    MtaStsMode
+	MX      []string
+	MaxAge  int
+}
+
+func NewMtaStsPolicy(mode MtaStsMode, mx []string, maxAgeSeconds int) MtaStsPolicy {
+	if maxAgeSeconds <= 0 {
+		maxAgeSeconds = 604800 // default 7 days
+	}
+	return MtaStsPolicy{
+		Version: "STSv1",
+		Mode:    mode,
+		MX:      mx,
+		MaxAge:  maxAgeSeconds,
+	}
+}
+
+func (p MtaStsPolicy) Format() string {
+	var sb strings.Builder
+	sb.WriteString(fmt.Sprintf("version: %s\r\n", p.Version))
+	sb.WriteString(fmt.Sprintf("mode: %s\r\n", p.Mode))
+	for _, mxHost := range p.MX {
+		sb.WriteString(fmt.Sprintf("mx: %s\r\n", mxHost))
+	}
+	sb.WriteString(fmt.Sprintf("max_age: %d\r\n", p.MaxAge))
+	return sb.String()
+}

services/protocols/internal/domain/valueobject/mta_sts_policy_test.go

@@ -0,0 +1,24 @@
+package valueobject
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestMtaStsPolicy_Format(t *testing.T) {
+	policy := NewMtaStsPolicy(MtaStsModeEnforce, []string{"mail.example.test"}, 604800)
+	formatted := policy.Format()
+
+	if !strings.Contains(formatted, "version: STSv1") {
+		t.Errorf("missing version: %s", formatted)
+	}
+	if !strings.Contains(formatted, "mode: enforce") {
+		t.Errorf("missing mode: %s", formatted)
+	}
+	if !strings.Contains(formatted, "mx: mail.example.test") {
+		t.Errorf("missing mx: %s", formatted)
+	}
+	if !strings.Contains(formatted, "max_age: 604800") {
+		t.Errorf("missing max_age: %s", formatted)
+	}
+}

services/protocols/internal/e2e/dns_sync_e2e_test.go

@@ -39,20 +39,19 @@ func TestDnsSyncAndSystemAliasesEndToEnd(t *testing.T) {
 	defer pool.Close()
 
 	root := repoRoot(t)
-	sql, err := os.ReadFile(filepath.Join(root, "migrations", "0001_init_schema.up.sql"))
+	migrations := []string{
-	if err != nil {
+		"0001_init_schema.up.sql",
-		t.Fatalf("read migration 0001: %v", err)
+		"0002_add_is_system_to_aliases.up.sql",
+		"0003_create_report_tables.up.sql",
 	}
-	if _, err := pool.Exec(ctx, string(sql)); err != nil {
+	for _, m := range migrations {
-		t.Fatalf("apply migration 0001: %v", err)
+		sql, err := os.ReadFile(filepath.Join(root, "migrations", m))
-	}
+		if err != nil {
-
+			t.Fatalf("read migration %s: %v", m, err)
-	sql0002, err := os.ReadFile(filepath.Join(root, "migrations", "0002_add_is_system_to_aliases.up.sql"))
+		}
-	if err != nil {
+		if _, err := pool.Exec(ctx, string(sql)); err != nil {
-		t.Fatalf("read migration 0002: %v", err)
+			t.Fatalf("apply migration %s: %v", m, err)
-	}
+		}
-	if _, err := pool.Exec(ctx, string(sql0002)); err != nil {
-		t.Fatalf("apply migration 0002: %v", err)
 	}
 
 	// Seed domain & admin mailbox

services/protocols/internal/e2e/f2_complete_e2e_test.go

@@ -53,20 +53,19 @@ func TestF2CompleteSuiteEndToEnd(t *testing.T) {
 	defer pool.Close()
 
 	root := repoRoot(t)
-	sql, err := os.ReadFile(filepath.Join(root, "migrations", "0001_init_schema.up.sql"))
+	migrations := []string{
-	if err != nil {
+		"0001_init_schema.up.sql",
-		t.Fatalf("read migration 0001: %v", err)
+		"0002_add_is_system_to_aliases.up.sql",
+		"0003_create_report_tables.up.sql",
 	}
-	if _, err := pool.Exec(ctx, string(sql)); err != nil {
+	for _, m := range migrations {
-		t.Fatalf("apply migration 0001: %v", err)
+		sql, err := os.ReadFile(filepath.Join(root, "migrations", m))
-	}
+		if err != nil {
-
+			t.Fatalf("read migration %s: %v", m, err)
-	sql0002, err := os.ReadFile(filepath.Join(root, "migrations", "0002_add_is_system_to_aliases.up.sql"))
+		}
-	if err != nil {
+		if _, err := pool.Exec(ctx, string(sql)); err != nil {
-		t.Fatalf("read migration 0002: %v", err)
+			t.Fatalf("apply migration %s: %v", m, err)
-	}
+		}
-	if _, err := pool.Exec(ctx, string(sql0002)); err != nil {
-		t.Fatalf("apply migration 0002: %v", err)
 	}
 
 	// 2. Seed domain, mailbox, INBOX, Archive

services/protocols/internal/e2e/http_services_e2e_test.go

@@ -0,0 +1,145 @@
+package e2e
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	embeddedpostgres "github.com/fergusstrange/embedded-postgres"
+
+	appusecase "lambdamail/protocols/internal/application/usecase"
+	"lambdamail/protocols/internal/infrastructure/postgres"
+	httppresentation "lambdamail/protocols/internal/presentation/http"
+)
+
+func TestHttpServicesEndToEnd(t *testing.T) {
+	if testing.Short() {
+		t.Skip("e2e test skipped in -short mode")
+	}
+	ctx := context.Background()
+
+	runtimeDir := t.TempDir()
+	pg := embeddedpostgres.NewDatabase(embeddedpostgres.DefaultConfig().
+		Port(54337).
+		RuntimePath(runtimeDir).
+		StartTimeout(120 * time.Second))
+	if err := pg.Start(); err != nil {
+		t.Fatalf("start embedded postgres: %v", err)
+	}
+	defer pg.Stop()
+
+	dbURL := "postgres://postgres:postgres@localhost:54337/postgres?sslmode=disable"
+	pool, err := postgres.NewPool(ctx, dbURL)
+	if err != nil {
+		t.Fatalf("connect pool: %v", err)
+	}
+	defer pool.Close()
+
+	root := repoRoot(t)
+	migrations := []string{
+		"0001_init_schema.up.sql",
+		"0002_add_is_system_to_aliases.up.sql",
+		"0003_create_report_tables.up.sql",
+	}
+
+	for _, m := range migrations {
+		sql, err := os.ReadFile(filepath.Join(root, "migrations", m))
+		if err != nil {
+			t.Fatalf("read migration %s: %v", m, err)
+		}
+		if _, err := pool.Exec(ctx, string(sql)); err != nil {
+			t.Fatalf("apply migration %s: %v", m, err)
+		}
+	}
+
+	reportRepo := postgres.NewReportRepository(pool)
+	reportUseCase := appusecase.NewIngestReportsUseCase(reportRepo)
+	router := httppresentation.NewRouter(reportUseCase, func() error { return pool.Ping(ctx) })
+
+	ts := httptest.NewServer(router)
+	defer ts.Close()
+
+	client := ts.Client()
+
+	// 1. MTA-STS policy check
+	req, _ := http.NewRequest(http.MethodGet, ts.URL+"/.well-known/mta-sts.txt", nil)
+	req.Host = "mta-sts.httpdomain.test"
+	resp, err := client.Do(req)
+	if err != nil || resp.StatusCode != http.StatusOK {
+		t.Fatalf("mta-sts request failed: err=%v, code=%d", err, resp.StatusCode)
+	}
+	bodyBytes, _ := io.ReadAll(resp.Body)
+	resp.Body.Close()
+	if !strings.Contains(string(bodyBytes), "version: STSv1") || !strings.Contains(string(bodyBytes), "mx: mail.httpdomain.test") {
+		t.Errorf("mta-sts policy mismatch: %s", string(bodyBytes))
+	}
+
+	// 2. Thunderbird autoconfig XML check
+	req, _ = http.NewRequest(http.MethodGet, ts.URL+"/mail/config-v1.1.xml", nil)
+	req.Host = "autoconfig.httpdomain.test"
+	resp, err = client.Do(req)
+	if err != nil || resp.StatusCode != http.StatusOK {
+		t.Fatalf("autoconfig request failed: err=%v, code=%d", err, resp.StatusCode)
+	}
+	bodyBytes, _ = io.ReadAll(resp.Body)
+	resp.Body.Close()
+	if !strings.Contains(string(bodyBytes), "<clientConfig version=\"1.1\">") {
+		t.Errorf("autoconfig xml mismatch: %s", string(bodyBytes))
+	}
+
+	// 3. Security.txt check
+	req, _ = http.NewRequest(http.MethodGet, ts.URL+"/.well-known/security.txt", nil)
+	req.Host = "httpdomain.test"
+	resp, err = client.Do(req)
+	if err != nil || resp.StatusCode != http.StatusOK {
+		t.Fatalf("security.txt request failed: err=%v, code=%d", err, resp.StatusCode)
+	}
+	bodyBytes, _ = io.ReadAll(resp.Body)
+	resp.Body.Close()
+	if !strings.Contains(string(bodyBytes), "Contact: mailto:security@httpdomain.test") {
+		t.Errorf("security.txt mismatch: %s", string(bodyBytes))
+	}
+
+	// 4. Ingest DMARC report over HTTP and verify PostgreSQL persistence
+	dmarcPayload := `<?xml version="1.0"?>
+<feedback>
+  <report_metadata><org_name>httporg.com</org_name><report_id>e2e123</report_id><date_range><begin>1600000000</begin><end>1600086400</end></date_range></report_metadata>
+  <policy_published><domain>httpdomain.test</domain></policy_published>
+  <record><row><source_ip>198.51.100.5</source_ip><count>12</count><policy_evaluated><disposition>none</disposition><dkim>pass</dkim><spf>pass</spf></policy_evaluated></row><identifiers><header_from>httpdomain.test</header_from></identifiers></record>
+</feedback>`
+
+	resp, err = client.Post(ts.URL+"/api/v1/reports/dmarc", "application/xml", bytes.NewBufferString(dmarcPayload))
+	if err != nil || resp.StatusCode != http.StatusOK {
+		t.Fatalf("dmarc ingest failed: err=%v, code=%d", err, resp.StatusCode)
+	}
+
+	var dmarcCount int
+	if err := pool.QueryRow(ctx, `SELECT count(*) FROM dmarc_reports WHERE org_name = 'httporg.com'`).Scan(&dmarcCount); err != nil || dmarcCount != 1 {
+		t.Fatalf("expected 1 dmarc report in DB, got count=%d, err=%v", dmarcCount, err)
+	}
+
+	// 5. Ingest TLS-RPT report over HTTP and verify PostgreSQL persistence
+	tlsRptPayload := `{
+		"organization-name": "httporg.com",
+		"report-id": "tls123",
+		"date-range": {"start-datetime": "2026-07-25T00:00:00Z", "end-datetime": "2026-07-25T23:59:59Z"},
+		"policies": [{"policy": {"policy-type": "sts", "domain": "httpdomain.test"}, "summary": {"total-successful-session-count": 50, "total-failure-session-count": 0}}]
+	}`
+
+	resp, err = client.Post(ts.URL+"/api/v1/reports/tlsrpt", "application/json", bytes.NewBufferString(tlsRptPayload))
+	if err != nil || resp.StatusCode != http.StatusOK {
+		t.Fatalf("tls-rpt ingest failed: err=%v, code=%d", err, resp.StatusCode)
+	}
+
+	var tlsRptCount int
+	if err := pool.QueryRow(ctx, `SELECT count(*) FROM tls_rpt_reports WHERE organization_name = 'httporg.com'`).Scan(&tlsRptCount); err != nil || tlsRptCount != 1 {
+		t.Fatalf("expected 1 tls-rpt report in DB, got count=%d, err=%v", tlsRptCount, err)
+	}
+}

services/protocols/internal/infrastructure/postgres/report_repository.go

@@ -0,0 +1,79 @@
+package postgres
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"lambdamail/protocols/internal/domain/entity"
+)
+
+type ReportRepository struct {
+	pool *pgxpool.Pool
+}
+
+func NewReportRepository(pool *pgxpool.Pool) *ReportRepository {
+	return &ReportRepository{pool: pool}
+}
+
+func (r *ReportRepository) SaveDmarcReport(ctx context.Context, report *entity.DmarcReport) error {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer tx.Rollback(ctx)
+
+	var reportID uuid.UUID
+	err = tx.QueryRow(ctx, `
+		INSERT INTO dmarc_reports (org_name, report_id, domain, date_range_begin, date_range_end)
+		VALUES ($1, $2, $3, $4, $5)
+		RETURNING id
+	`, report.OrgName, report.ReportID, report.Domain, report.DateRangeBegin, report.DateRangeEnd).Scan(&reportID)
+	if err != nil {
+		return fmt.Errorf("insert dmarc report header: %w", err)
+	}
+
+	for _, rec := range report.Records {
+		_, err := tx.Exec(ctx, `
+			INSERT INTO dmarc_report_records (report_id, source_ip, count, disposition, dkim_result, spf_result, header_from)
+			VALUES ($1, $2, $3, $4, $5, $6, $7)
+		`, reportID, rec.SourceIP, rec.Count, rec.Disposition, rec.DKIMResult, rec.SPFResult, rec.HeaderFrom)
+		if err != nil {
+			return fmt.Errorf("insert dmarc record: %w", err)
+		}
+	}
+
+	return tx.Commit(ctx)
+}
+
+func (r *ReportRepository) SaveTlsRptReport(ctx context.Context, report *entity.TlsRptReport) error {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer tx.Rollback(ctx)
+
+	var reportID uuid.UUID
+	err = tx.QueryRow(ctx, `
+		INSERT INTO tls_rpt_reports (organization_name, report_id, domain, date_range_begin, date_range_end)
+		VALUES ($1, $2, $3, $4, $5)
+		RETURNING id
+	`, report.OrganizationName, report.ReportID, report.Domain, report.DateRangeBegin, report.DateRangeEnd).Scan(&reportID)
+	if err != nil {
+		return fmt.Errorf("insert tls-rpt report header: %w", err)
+	}
+
+	for _, pol := range report.Policies {
+		_, err := tx.Exec(ctx, `
+			INSERT INTO tls_rpt_report_policies (report_id, policy_type, success_count, failure_count)
+			VALUES ($1, $2, $3, $4)
+		`, reportID, pol.PolicyType, pol.SuccessCount, pol.FailureCount)
+		if err != nil {
+			return fmt.Errorf("insert tls-rpt policy: %w", err)
+		}
+	}
+
+	return tx.Commit(ctx)
+}

services/protocols/internal/infrastructure/postgres/report_repository_test.go

@@ -0,0 +1,58 @@
+package postgres
+
+import (
+	"context"
+	"os"
+	"testing"
+	"time"
+
+	"lambdamail/protocols/internal/domain/entity"
+)
+
+func TestReportRepository_SaveDmarcAndTlsRpt(t *testing.T) {
+	dbURL := os.Getenv("TEST_DATABASE_URL")
+	if dbURL == "" {
+		t.Skip("TEST_DATABASE_URL not set - skipping Postgres integration test")
+	}
+
+	ctx := context.Background()
+	pool, err := NewPool(ctx, dbURL)
+	if err != nil {
+		t.Fatalf("connect pool: %v", err)
+	}
+	defer pool.Close()
+
+	repo := NewReportRepository(pool)
+
+	// Save DMARC
+	dmarc := &entity.DmarcReport{
+		OrgName:        "google.com",
+		ReportID:       "r123",
+		Domain:         "example.test",
+		DateRangeBegin: time.Now().Add(-24 * time.Hour),
+		DateRangeEnd:   time.Now(),
+		Records: []entity.DmarcRecord{
+			{SourceIP: "192.0.2.1", Count: 5, Disposition: "none", DKIMResult: "pass", SPFResult: "pass", HeaderFrom: "example.test"},
+		},
+	}
+
+	if err := repo.SaveDmarcReport(ctx, dmarc); err != nil {
+		t.Fatalf("SaveDmarcReport: %v", err)
+	}
+
+	// Save TLS-RPT
+	tlsRpt := &entity.TlsRptReport{
+		OrganizationName: "Google LLC",
+		ReportID:         "tr123",
+		Domain:           "example.test",
+		DateRangeBegin:   time.Now().Add(-24 * time.Hour),
+		DateRangeEnd:     time.Now(),
+		Policies: []entity.TlsRptPolicy{
+			{PolicyType: "sts", SuccessCount: 10, FailureCount: 0},
+		},
+	}
+
+	if err := repo.SaveTlsRptReport(ctx, tlsRpt); err != nil {
+		t.Fatalf("SaveTlsRptReport: %v", err)
+	}
+}

services/protocols/internal/presentation/http/router.go

@@ -0,0 +1,155 @@
+package httppresentation
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+
+	appusecase "lambdamail/protocols/internal/application/usecase"
+	"lambdamail/protocols/internal/domain/valueobject"
+)
+
+type Router struct {
+	mux           *http.ServeMux
+	reportUseCase *appusecase.IngestReportsUseCase
+	pingFunc      func() error
+}
+
+func NewRouter(reportUseCase *appusecase.IngestReportsUseCase, pingFunc func() error) *Router {
+	r := &Router{
+		mux:           http.NewServeMux(),
+		reportUseCase: reportUseCase,
+		pingFunc:      pingFunc,
+	}
+	r.registerRoutes()
+	return r
+}
+
+func (r *Router) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	r.mux.ServeHTTP(w, req)
+}
+
+func (r *Router) registerRoutes() {
+	r.mux.HandleFunc("/health", r.handleHealth)
+	r.mux.HandleFunc("/.well-known/mta-sts.txt", r.handleMtaSts)
+	r.mux.HandleFunc("/.well-known/security.txt", r.handleSecurityTxt)
+	r.mux.HandleFunc("/mail/config-v1.1.xml", r.handleThunderbirdAutoconfig)
+	r.mux.HandleFunc("/.well-known/autoconfig/mail/config-v1.1.xml", r.handleThunderbirdAutoconfig)
+	r.mux.HandleFunc("/autodiscover/autodiscover.xml", r.handleOutlookAutodiscover)
+	r.mux.HandleFunc("/api/v1/reports/dmarc", r.handleDmarcIngest)
+	r.mux.HandleFunc("/api/v1/reports/tlsrpt", r.handleTlsRptIngest)
+}
+
+func (r *Router) handleHealth(w http.ResponseWriter, _ *http.Request) {
+	if r.pingFunc != nil {
+		if err := r.pingFunc(); err != nil {
+			http.Error(w, fmt.Sprintf("unhealthy: %v", err), http.StatusServiceUnavailable)
+			return
+		}
+	}
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte("OK\n"))
+}
+
+func (r *Router) handleMtaSts(w http.ResponseWriter, req *http.Request) {
+	host := extractHost(req.Host)
+	domainName := strings.TrimPrefix(host, "mta-sts.")
+
+	policy := valueobject.NewMtaStsPolicy(valueobject.MtaStsModeEnforce, []string{fmt.Sprintf("mail.%s", domainName)}, 604800)
+
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	w.Header().Set("Cache-Control", "public, max-age=86400")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(policy.Format()))
+}
+
+func (r *Router) handleSecurityTxt(w http.ResponseWriter, req *http.Request) {
+	host := extractHost(req.Host)
+	expires := time.Now().AddDate(1, 0, 0).Format(time.RFC3339)
+
+	content := fmt.Sprintf("Contact: mailto:security@%s\r\nExpires: %s\r\nPreferred-Languages: en, pt-BR, es\r\n", host, expires)
+
+	w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(content))
+}
+
+func (r *Router) handleThunderbirdAutoconfig(w http.ResponseWriter, req *http.Request) {
+	host := extractHost(req.Host)
+	domainName := strings.TrimPrefix(host, "autoconfig.")
+
+	xml := valueobject.BuildThunderbirdAutoconfigXML(domainName, fmt.Sprintf("mail.%s", domainName))
+
+	w.Header().Set("Content-Type", "application/xml; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(xml))
+}
+
+func (r *Router) handleOutlookAutodiscover(w http.ResponseWriter, req *http.Request) {
+	host := extractHost(req.Host)
+	domainName := strings.TrimPrefix(host, "autodiscover.")
+
+	xml := valueobject.BuildOutlookAutodiscoverXML(domainName, fmt.Sprintf("mail.%s", domainName), fmt.Sprintf("user@%s", domainName))
+
+	w.Header().Set("Content-Type", "text/xml; charset=utf-8")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(xml))
+}
+
+func (r *Router) handleDmarcIngest(w http.ResponseWriter, req *http.Request) {
+	if req.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+	body, err := io.ReadAll(req.Body)
+	if err != nil {
+		http.Error(w, "Read body failed", http.StatusBadRequest)
+		return
+	}
+	if r.reportUseCase == nil {
+		http.Error(w, "Ingestion unconfigured", http.StatusInternalServerError)
+		return
+	}
+	if _, err := r.reportUseCase.IngestDmarc(req.Context(), body); err != nil {
+		http.Error(w, fmt.Sprintf("Parse error: %v", err), http.StatusBadRequest)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(`{"status":"ok"}`))
+}
+
+func (r *Router) handleTlsRptIngest(w http.ResponseWriter, req *http.Request) {
+	if req.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+	body, err := io.ReadAll(req.Body)
+	if err != nil {
+		http.Error(w, "Read body failed", http.StatusBadRequest)
+		return
+	}
+	if r.reportUseCase == nil {
+		http.Error(w, "Ingestion unconfigured", http.StatusInternalServerError)
+		return
+	}
+	if _, err := r.reportUseCase.IngestTlsRpt(req.Context(), body); err != nil {
+		http.Error(w, fmt.Sprintf("Parse error: %v", err), http.StatusBadRequest)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(`{"status":"ok"}`))
+}
+
+func extractHost(hostHeader string) string {
+	if h, _, err := strings.Cut(hostHeader, ":"); err && h != "" {
+		return h
+	}
+	if hostHeader == "" {
+		return "example.test"
+	}
+	return hostHeader
+}

services/protocols/internal/presentation/http/router_test.go

@@ -0,0 +1,69 @@
+package httppresentation
+
+import (
+	"bytes"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	appusecase "lambdamail/protocols/internal/application/usecase"
+)
+
+func TestRouter_MtaSts_Autoconfig_SecurityTxt_Ingest(t *testing.T) {
+	uc := appusecase.NewIngestReportsUseCase(nil)
+	router := NewRouter(uc, func() error { return nil })
+
+	// 1. Health
+	req := httptest.NewRequest(http.MethodGet, "/health", nil)
+	w := httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+	if w.Code != http.StatusOK {
+		t.Errorf("health status = %d", w.Code)
+	}
+
+	// 2. MTA-STS
+	req = httptest.NewRequest(http.MethodGet, "/.well-known/mta-sts.txt", nil)
+	req.Host = "mta-sts.example.test"
+	w = httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+	if w.Code != http.StatusOK || !strings.Contains(w.Body.String(), "version: STSv1") {
+		t.Errorf("mta-sts response = %q", w.Body.String())
+	}
+
+	// 3. Thunderbird Autoconfig
+	req = httptest.NewRequest(http.MethodGet, "/mail/config-v1.1.xml", nil)
+	req.Host = "autoconfig.example.test"
+	w = httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+	if w.Code != http.StatusOK || !strings.Contains(w.Body.String(), "<clientConfig") {
+		t.Errorf("autoconfig response = %q", w.Body.String())
+	}
+
+	// 4. Outlook Autodiscover
+	req = httptest.NewRequest(http.MethodPost, "/autodiscover/autodiscover.xml", nil)
+	req.Host = "autodiscover.example.test"
+	w = httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+	if w.Code != http.StatusOK || !strings.Contains(w.Body.String(), "<Autodiscover") {
+		t.Errorf("autodiscover response = %q", w.Body.String())
+	}
+
+	// 5. Security.txt
+	req = httptest.NewRequest(http.MethodGet, "/.well-known/security.txt", nil)
+	req.Host = "example.test"
+	w = httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+	if w.Code != http.StatusOK || !strings.Contains(w.Body.String(), "Contact: mailto:security@example.test") {
+		t.Errorf("security.txt response = %q", w.Body.String())
+	}
+
+	// 6. Report Ingestion (DMARC)
+	dmarcPayload := `<?xml version="1.0"?><feedback><report_metadata><org_name>org</org_name><report_id>id</report_id><date_range><begin>1</begin><end>2</end></date_range></report_metadata><policy_published><domain>dom</domain></policy_published></feedback>`
+	req = httptest.NewRequest(http.MethodPost, "/api/v1/reports/dmarc", bytes.NewBufferString(dmarcPayload))
+	w = httptest.NewRecorder()
+	router.ServeHTTP(w, req)
+	if w.Code != http.StatusOK || !strings.Contains(w.Body.String(), `"status":"ok"`) {
+		t.Errorf("dmarc ingest status = %d, body = %q", w.Code, w.Body.String())
+	}
+}