D G Teed: > Aug 30 22:30:20 myself postfix/smtpd[25013]: NOQUEUE: reject: RCPT from > mta03.anisp.ca[24.111.111.111]: 550 5.1.1 <12345...@example.com>: Recipient > address rejected: User unknown in local recipient table > > However, if the email address is of the format of 6 numbers followed by a > letter, then the message is > queued and bounced.
As documented, and mentioned frequently here, wild-card canonical and virtual alias mappings break recipient address validation in the Postfix SMTP server, resulting in accept-then-bounce behavior. Wietse