Badly formed return address causes TMDA exception

Today someone started sending messages with a badly formed return
address to one of my tmda-enabled email accounts. The address contains
more than one "@" character, and it causes the following TMDA exception
(see below).

What's the recommended method for fixing this?

Ideally, I'd like to catch the exception in the appropriate place within
the TMDA code, because there are a number of ways to send bogus return
addresses, and I don't want to try to come up with a pattern that
matches every possible form of a bad address.

Thanks in advance.


Here's the exception I'm getting:

  Uncaught Python 2.3.5 Exception (Sat May  2 12:03:41 2009):
  -----------------------------------------------------------
  Traceback (most recent call last):
    File "/usr/local/tmda/bin/tmda-filter", line 53, in ?
      execfile(os.path.join(execdir, 'tmda-rfilter'))
    File "/usr/local/tmda/bin/tmda-rfilter", line 888, in ?
      main()
    File "/usr/local/tmda/bin/tmda-rfilter", line 884, in main
      'bounce_incoming.txt')
    File "/usr/local/tmda/bin/tmda-rfilter", line 475, in do_default_action
      bouncegen('request')
    File "/usr/local/tmda/bin/tmda-rfilter", line 775, in bouncegen
      send_bounce(bounce_message, mode)
    File "/usr/local/tmda/bin/tmda-rfilter", line 447, in send_bounce
      ar.send()
    File "./TMDA/AutoResponse.py", line 226, in send
    File "/usr/local/tmda/TMDA/Util.py", line 598, in sendmail
      server.sendmail(envsender, envrecip, msgstr)
    File "./TMDA/SMTP.py", line 61, in sendmail
    File "/usr/lib/python2.3/smtplib.py", line 687, in sendmail
      raise SMTPRecipientsRefused(senderrs)
  SMTPRecipientsRefused: {'UniqueHealthSupply@[email protected]':
    (501, '5.1.3 Bad recipient address syntax')}

-- 
 Lloyd Zusman
 [email protected]
 God bless you.


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