From: Mark Martinec (Mark.Martinec+postfixijs.si)
Date: Thu Feb 01 2007 - 05:20:27 CST

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Eray,

> 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?

With:
  strict_rfc821_envelopes = yes

mail from:<ijs.si>
501 5.1.7 Bad sender address syntax

We have the strict_rfc821_envelopes turned on since forever
for precisely this reason. There were no cases here
of legitimate mail that were turned down by this setting.

  Mark

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