If a mail is sent to a domain alias domain and rejected, mailcow does not currently store the mail in quarantine.
This commit adds domain alias handling to the reject code and should fix this behavior.
Also added displaying of recipient addresses into the quarantine mail dialog to be able to see what mail address was "leaked".
[Git] Ignore mail_plugins*
[Dovecot] Read mail_plugins from dynamically generated file
[Dovecot] Encrypt FTS
[Dovecot] Add break_imap_seach option to Solr
[Web] Add ability to send quarantine notification mails
[Web] Minor style fixes
[Web] Add new MAILBOX_DEFAULT_ATTRIBUTES (doc updates, anyone? :-( )
[Web] Use rcpt_smtp if rcpt_mime is not set
[Web] Other minor fixes
