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Re: Duplicate Emails Sent RESTATED

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  • Ed
    Thanks for the insight  Larry. I think that some work nee3ds to be done on the filter at 100026 Ed ... Thanks for the insight Larry. I think that some work
    Message 1 of 12 , Mar 20, 2013
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      Thanks for the insight  Larry.

      I think that some work nee3ds to be done on the filter at 100026

      Ed


      From: Larry Stone <lstone19@...>
      To: "postfix-users@... Users" <postfix-users@...>
      Sent: Tuesday, March 19, 2013 1:10 PM
      Subject: Re: Duplicate Emails Sent RESTATED

      On Tue, 19 Mar 2013, Ed wrote:

      > Hi All.
      >
      > I am experiencing an issue with the following:
      >
      > The scenario:
      >  
      > From: aaaa@...
      > To:      bbbb@...
      > CC:    me@...
      >  
      > After receiving the email CC at site 3, site 3 is sending out emails to
      > everyone on the original,
      > basically a duplicate email arrives to the sender and everyone in the
      > headers.

      You then include logs but it's hard to figure out what corresponds to site1, site2, and site3.

      The logs appear to indicate that there are one or more content filters at play. Noel pointed out what can happen if they're poorly designed.

      Postfix

      > Site 3 logs and postconf follows
      > Logs
      > ----------------------
      > Mar 14 10:27:41 mail postfix/cleanup[5265]: 10E7BE1C0A:message-id=<E72852EF80963148B21E9046E0C9BDC82863FEC1@...
      > al>
      > Mar 14 10:27:41 mail postfix/smtpd[5269]: disconnect from
      > localhost[127.0.0.1]
      > Mar 14 10:27:41 mail postfix/smtp[5266]: 44D90E014D:
      > to=<edlang@...>, relay=127.0.0.1[127.0.0.1]:10024, delay=6.5,
      > delays=1.7/0.02/0/4.7, dsn=2.0.0, status=sent (250 2.0.0 Ok, id=03066-15,
      > from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as 10E7BE1C0A)

      What's this. We see the queue ID reported by the recieving SMTP server in our own logs. Is this just being handed off to our same Postfix instance on another port?

      > Mar 14 10:27:41 mail postfix/qmgr[2179]: 44D90E014D: removed
      > Mar 14 10:27:41 mail postfix/smtp[5270]: 10E7BE1C0A:
      > to=<edlang@...>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.05,
      > delays=0.03/0.02/0/0, dsn=2.0.0, status=sent (250 Ok)

      Handed off to a content filter at port 10026.

      > Mar 14 10:27:41 mail postfix/qmgr[2179]: 10E7BE1C0A: removed

      > Mar 14 10:27:41 mail postfix/smtpd[5272]: connect from localhost[127.0.0.1]
      > Mar 14 10:27:41 mail postfix/smtpd[5272]: 4B9A3E1C0A:
      > client=localhost[127.0.0.1]
      > Mar 14 10:27:41 mail postfix/cleanup[5265]: 4B9A3E1C0A:message-id=<E72852EF80963148B21E9046E0C9BDC82863FEC1@...
      > al>
      > Mar 14 10:27:41 mail postfix/qmgr[2179]: 4B9A3E1C0A:
      > from=<avery.robert@...>, size=7049, nrcpt=3 (queue active)

      And comes back from a content filter with 3 recipients.

      Seeing your master.cf might help too. But it's most likely the content filter listening to port 10026.

      -- Larry Stone
        lstone19@...

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