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Re: canonical_maps pattern causes NDR to be sent as requeued message

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  • Wietse Venema
    ... As documented, and mentioned frequently here, wild-card canonical and virtual alias mappings break recipient address validation in the Postfix SMTP server,
    Message 1 of 2 , Aug 31, 2010
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      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 <1234567t@...>: 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
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