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doctor.nl2k.ab.ca: Postfix SMTP server: errors from mail-iw0-f172.google.com[209.85.223.172]]
From: The Doctor (doctordoctor.nl2k.ab.ca)
Date: Thu Apr 22 2010 - 17:44:01 CDT
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On Thu, Apr 22, 2010 at 03:02:30PM -0700, brian moore wrote:
> On Thu, 22 Apr 2010 15:38:06 -0600
> The Doctor <doctordoctor.nl2k.ab.ca> wrote:
>
>
> > Out: 220 doctor.nl2k.ab.ca ESMTP Postfix (2.8-20100323)
> > In: XXXX mail-iw0-f172.google.com
> > Out: 402 4.5.2 Error: command not recognized
>
> XXXX is not a valid SMTP/ESMTP command.
>
> Are you using a Pix?
>
No.
>
> > Out: 451 4.3.0 Error: queue file write error
>
> I believe that will show up in an SMTP (ie, not ESMTP) session
> where the SIZE attribute is neither specified nor read from the ESMTP
> response.
>
> Ie, "send a file larger than the max size and don't bother telling
> the receiver 'oh, yeah, here comes a 20M file' first."
>
> The ESMTP response (which would be seen if the XXXX was EHLO) tells the
> maximum message size, and ESMTP also allows for a SIZE= parameter on
> the MAIL FROM: as a sort of 'warning' to the receiver as well.
>
> Google -does- usually use ESMTP, so it really looks like you have a
> Pix running SMTP Fixup, which doesn't fix anything at all.
I do not use a Pix.
--
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