The folder list and the message list were two queries over the same tables. IMAP took a folder's message count from a cached column and the webmail counted rows, so the two could disagree. Both now ask MailStore, which counts the messages.
The folder list and the message list were two queries over the same tables. IMAP took a folder's message count from a cached column and the webmail counted rows, so the two could disagree. Both now ask MailStore, which counts the messages.