Add email aliases and shared mailbox support

Shipped

March 26, 2026 at 5:41 AM UTC

Author

Kamo

Commit

27d5044

New MailboxManager provider capability interface for alias and shared mailbox CRUD. KamoMailMailboxManager implementation manages dovecot/postfix virtual_users and virtual_aliases via MySQL. AliasController and SharedMailboxController provide REST APIs. SharedMailboxMailController proxies IMAP operations for shared mailboxes. EmailSmtpService updated to support from-address override for send-as functionality. MailProviderResolver wired with MailboxManager capability.