[Mailman-Users] Weird error

[Bek Oberin]

Getting this weird error, anybody decode it for me:

   ----- The following addresses had permanent fatal errors -----
"|/var/lib/mailman/mail/wrapper post training"
    (expanded from: training+eval at netizen.com.au)

   ----- Transcript of session follows -----
Traceback (innermost last):
  File "/var/lib/mailman/scripts/post", line 73, in ?
    mlist.Post(msg, approved=fromusenet)
  File "/usr/lib/mailman/Mailman/MailList.py", line 1179, in Post
    sender = msg.GetSender()
  File "/usr/lib/mailman/Mailman/Message.py", line 119, in GetSender
    return string.lower(mail_address)
TypeError: read-only buffer, None
554 "|/var/lib/mailman/mail/wrapper post training"... unknown mailer error 1



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