On Thu, Nov 13, 2008 at 10:18:06AM +0100, Nick wrote:
> I run a postfix 2.2.3 server (centOS 5.2) with the whole mySQL virtual
> users/domains setup, which works just fine except for a few small
> issues, which strangely affect only a few users.
>
> Basically, the server after recieving the mail, does a few checks then
> delivers it to the final destination just fine, but for a few users (for
> a reason I'm not able to understand) it sends a delivery report after
> successful deliveries (obviously an unsuccessful delivery should
> generate a message).
>
> for example:
>
> Nov 13 08:38:26 mail2 postfix/qmgr[3157]: 606062280A3:
> from=<[EMAIL PROTECTED]>, size=5133, nrcpt=1 (queue active)
> Nov 13 08:38:26 mail2 postfix/virtual[10094]: 606062280A3:
> to=<[EMAIL PROTECTED]>, relay=virtual, delay=0.16,
> delays=0.06/0.06/0/0.04, dsn=2.0.0, status=sent (delivered to maildir)
> Nov 13 08:38:26 mail2 postfix/bounce[10275]: 606062280A3: sender
> delivery status notification: 8769C2280B0
This is a DSN, requested by the remote MTA and honoured by a Postfix 2.3+
(not 2.2) system in which DSN was not suppressed in the SMTP server
EHLO response. If you don't want to send DSNs, disable DSN in the EHLO
response of your internet-facing edge SMTP server (I do this).
http://www.postfix.org/postconf.5.html#smtpd_discard_ehlo_keywords
smtpd_discard_ehlo_keywords = silent-discard DSN
--
Viktor.
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