Mailbox Test button and port/encryption warnings: user page, developer guide (password-reuse TRAP), testing page, send log route, mailbox warnings list Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Basic IMAP without the PHP extension: decision record, developer guide (protocol walk-through), testing page; user, Docker, folder-verify and provider pages updated (#257, #259) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>