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214063Re: Invalid address and bounce from Exchange

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  • Erwan David
    Feb 1, 2007
    • 0 Attachment
      Le Thu 1/02/2007, Eray Aslan disait
      > Eray Aslan wrote:
      > > Postfix acts as a relay for our internal exchange server. The following
      > > message generates a bounce from exchange. Shouldn't
      > > reject_non_fqdn_sender catch these addresses?
      >
      > mail ~ # telnet 127.0.0.1 25
      > Trying 127.0.0.1...
      > Connected to 127.0.0.1.
      > Escape character is '^]'.
      > 220 mail.caf.com.tr ESMTP Postfix
      > ehlo example.net
      > 250-mail.caf.com.tr
      > 250-PIPELINING
      > 250-SIZE 10240000
      > 250-VRFY
      > 250-ETRN
      > 250-STARTTLS
      > 250-ENHANCEDSTATUSCODES
      > 250-8BITMIME
      > 250 DSN
      > mail from: @...
      > 250 2.1.0 Ok
      > rcpt to: user3@...
      > 250 2.1.5 Ok
      > data
      > 354 End data with <CR><LF>.<CR><LF>
      > test
      > .
      > 250 2.0.0 Ok: queued as 35526138BB6
      > quit
      > 221 2.0.0 Bye
      > Connection closed by foreign host.
      >
      > and the message bounces:
      >
      > Feb 1 10:36:34 mail postfix/smtp[28903]: 836FB141AF0:
      > to=<user3@...>, relay=10.0.0.3[10.0.0.3]:25, delay=0.35,
      > delays=0.08/0.04/0.22/0, dsn=5.5.4, status=bounced (host
      > 10.0.0.3[10.0.0.3] said: 501 5.5.4 Invalid Address (in reply to MAIL
      > FROM command))

      You must somehow give to your postifx the valid Exchange addresses in
      a relay_recipient_maps, then the reject_unlisted_recipient restriction
      will reject those addresses at postfix level.


      --
      Erwan David
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