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Re: postfix 2.8 and upper don't close connection with smtpd_proxy_filter

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  • Ludovic LEVET
    Deviation is use only in case of problem, et RFC give this possibility by the time out , but not in normal condition. Ludovic. ... -- ... Ce message inclut
    Message 1 of 17 , Apr 25 6:33 AM
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      Deviation is use only in case of problem, et RFC give this possibility
      by the 'time out', but not in normal condition.

      Ludovic.

      Le 23/04/2013 23:21, Viktor Dukhovni a écrit :
      > On Tue, Apr 23, 2013 at 10:52:02PM +0200, Michael Storz wrote:
      >
      >>> After sending END-OF-MESSAGE, the Postfix smtpd_proxy_CLIENT closes
      >>> the SMTP connection to the before-queue content filter.
      >> And this is exactly the problem: smtpd_proxy_CLIENT closes the
      >> connection without sending
      >> the QUIT command first, which is in violation of RFC 5321, section
      >> "4.1.1.10. QUIT (QUIT)"
      > This is irrelevant. All TCP services need to handle mid-stream
      > client disconnect sensibly. QUIT is nice to send, but this is not
      > always possible, so deviating from RFC 5321 by not sending QUIT
      > is harmless.
      >
      >>> Apparently the content filter is waiting for QUIT *after* the
      >>> connection is closed. Please file a bug report for the content
      >>> filter.
      >> Wietse, this was a bug report for Postfix! Filing a bug report for
      >> the content filter because it does not check for a dropped
      >> connection is another story.
      > And yet that's the real problem, the content filter must propagate
      > not only QUIT but also EOF.
      >

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