Dear all,
This is a question that in a way trascends exim.
I believe in some RFCs it is stated that a postmaster address must exist at a domain. The common exim configuration has indeed a postmaster alias and the following line early in the rcpt acl:
accept local_parts = postmaster
domains = +local_domains
The comment in the specs says:
The presence of this statement means that mail to postmaster is never
blocked by any of the subsequent tests. This can be helpful while
sorting out problems in cases where the subsequent tests are incorrectly
denying access.
Does this comment imply that it is not compulsory to accept every email addressed to postmaster, in particular when it smells like spam like the following:
Return-path: <SomerPierce783517@???>
Envelope-to: kjhfghsdfjghfjkhds@??? <<<< this was postmaster, of course
Delivery-date: Fri, 06 Dec 2002 08:45:35 +0000
Received: from w3c.ists.pl ([195.150.131.20] helo=mx4.mail.yahoo.com)
by drum.humph.com with smtp (Exim 4.10)
id H6OWBY-000F7T-00
Now that I use exim, even without rbl I have virtually stopped all spam, except that some clever guys still get through using the postmaster address.
Opinions?
Thanks
Giuliano
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