#18: implement SMTP Submission (587/465), SASL PLAIN/LOGIN auth and preflight diagnostics

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

@@ -0,0 +1,12 @@
+//go:build !unix
+
+package main
+
+import "errors"
+
+// freeDiskPercent has no portable implementation outside unix. Returning an
+// error makes the preflight report the check as skipped rather than inventing
+// a number.
+func freeDiskPercent(string) (float64, error) {
+	return 0, errors.New("free disk space check is only implemented on unix")
+}