Re: Postfix rejecting NDRs with 501 5.5.4 Bad message size syntax ?

From: Wietse Venema (no email)
Date: Thu Mar 01 2007 - 15:02:55 EST

  • Next message: Chris St. Pierre: "RE: Question about "spoofing" emails."

    Victor Duchovni:
    > On Thu, Mar 01, 2007 at 01:49:29PM -0500, Charles Marcus wrote:
    >
    > > >>They are working to fix the bug, but is there anything that I can do in
    > > >>the meantime - that is reasonably simple to do - to allow NDRs to get
    > > >>through? It doesn't look like it to me, but that's not saying much... ;)
    > >
    > > >Patch the Postfix source to handle and ignore this special case if your
    > > >C programming skills are up to this.
    > >
    > > heh... not... ;)
    > >
    > > Thanks for confriming... will pressure them to fix their bug.
    >
    > Actually there is something you may be able to do:
    >
    > smtpd_discard_ehlo_keyword_address_maps = cidr:/etc/postfix/esmtp_by_ip
    >
    > esmtp_by_ip:
    > # Replace 192.0.2.NNN/25 with real CIDR blocks of MXlogic proxies.
    > 192.0.2.0/25 size,silent-discard
    > 192.0.2.128/25 size,silent-discard

    Yup, this (and the Postfix SMTP client equivalent) was meant to
    work around broken peers selectively, that is, without affecting
    connectivity with correctly implemented peers.

            Wietse


  • Next message: Chris St. Pierre: "RE: Question about "spoofing" emails."





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