Some help from you experts please as searches of the Exim archives or
the Wiki did not turn up anything useful.
As a part-time postmaster of a small mail host setup which runs Exim
4.63 I get some reports on spam that failed because of "Bad destination
mailbox address".
Where is this generated by Exim? Is it by a router or does it happen
earlier?
Why I am asking is that most of this spam is addressed to
'[EMAIL PROTECTED]' <mailto:'[EMAIL PROTECTED]'> .
In an effort to stop this particular type of spam I added the following
to the acl_smtp_rcpt ACL:
discard hosts = +company_relays
condition = ${if match {${lc:$local_part}} {(mailer-daemon)}}
logwrite = External e-mail from '$sender_address' for
'[EMAIL PROTECTED]' <mailto:'[EMAIL PROTECTED]'> -
discard!
This discards spam arriving from outside the company addressed to
'[EMAIL PROTECTED]' but doesn't catch the spam that results in
the "Bad destination mailbox address" e-mail being sent to postmaster.
These type of e-mails also have 'Return-path: <>' but my acl_smtp_rcpt
ACL code doesn't catch that either.
Any ideas of how I can discard this type of spam without an e-mail being
sent to postmaster because of "Bad destination mailbox address"?
Thanks
Paul McIlfatrick
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