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289951Re: Redirecting queued messages

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  • Viktor Dukhovni
    Dec 7, 2012
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      On Fri, Dec 07, 2012 at 08:12:34AM +0100, Luigi Rosa wrote:

      > Hi,
      > I have a border SMTP server that has some local mailbox and relays other
      > recipients to an internal Exchange server
      > Relay to Exchange is done via transport file with something like this:
      > exchange.acme.com relay:[]
      > Old Exchange has been decommisioned and moved to a new host
      > I have updated transport file to reflact the new IP, but I still have some
      > mails in queue like this:
      > 3YHHKX0CKSzB96g 14711 Thu Dec 6 14:12:32 xxx@...
      > (delivery temporarily suspended: connect to[]:25:
      > Connection timed out)
      > Is there a way to redirect the queued emails to the new server using "local"
      > postfix tools instead of something like dual IP on Exchnge server?

      Postfix does NOT cache transport lookups in the queue file, each
      time a message is retried new transport lookups are performed for
      each recipient.

      Perhaps your active queue contained a backlog of messages awaiting their
      next attempt to reach the dead server. With the transport table updated
      you just need to wait, but if you prefer, a "postfix reload" will drain
      the active queue back into the incoming queue, and the transport lookups
      will then be fresh.

      Just waiting is another option, the messages will be retried and will
      use the updated transport.

      Don't use "postsuper -r", unless the queue files contain stale content_filter
      settings or require a fresh round of address rewriting by cleanup(8).

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