From: Eray Aslan (no email)
Date: Thu Feb 01 2007 - 04:56:30 EST
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 ~ # zgrep 503242E4DC /var/log/mail.log.1.gz
> Jan 29 16:50:46 mail postfix/smtpd[30273]: 503242E4DC:
> client=unknown[201.76.232.39]
> Jan 29 16:50:47 mail postfix/cleanup[30290]: 503242E4DC:
> message-id=<1d9701c743b4$034438c1$27e84cc9 at kawanna>
> Jan 29 16:50:50 mail postfix/qmgr[7027]: 503242E4DC: from=<@cathye.com>,
> size=7570, nrcpt=1 (queue active)
> Jan 29 16:50:58 mail postfix/smtp[30291]: 503242E4DC:
> to=<>, relay=127.0.0.1[127.0.0.1]:10024, delay=13,
> delays=5.1/0/0.01/7.6, dsn=2.6.0, status=sent (250 2.6.0 Ok,
> id=29009-20, from MTA([127.0.0.1]:10025): 250 2.0.0 Ok: queued as
> E85E09148D)
> Jan 29 16:50:58 mail postfix/qmgr[7027]: 503242E4DC: removed
As far as I can tell, RFCs allow empty local part as quoted null string.
Even if it is technically correct, should we allow empty local parts in
email address in the form of @example.com? Certainly, it not
deliverable. Or is Exchange at fault here and I should solve this by a
regexp in check_sender_access?
-- Eray
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