[fetchmail] Diagnostic-Code: 501 <guest(_at_)(_dot_)com>: domain missing

Hello,
I have received SPAM messages which have mailformed
domains in their from address several times now.
Fetchmail refuses to download these messages and
sends a notification to the postmaster.

How can I allow Fetchmail to delete these
messages without any further notifications?

example:
--------
  General SMTP/ESMTP error.
  Reporting-MTA: dns; localhost

  Final-Recipient: rfc822; XXXX(_at_)mydomain(_dot_)de
  Last-Attempt-Date: Thu, 10 Apr 2003 20:50:01 +0200 (MEST)
  Action: failed
  Status: 5.0.0
  Diagnostic-Code: 501 <guest(_at_)(_dot_)com>: domain missing or malformed


Thank you in advance!

Regards Juergen Edner

-- 
Mail: juergen(_dot_)edner(_at_)telejeck(_dot_)de
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