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554 5.6.0 Message contains NUL characters - Revisited

From: Per olof Ljungmark (peointersonic.se)
Date: Sat Apr 02 2005 - 06:21:10 CST


Hi list,

I have been reading through several posts regarding the NUL character in
  mail body. As we are running a postfix/cyrus combo and occasionally
see this with non-spam senders I would like to hear how others on the
list deal with the problem:

a) Have Postfix alter the body
b) Change the Cyrus source
c) Reject
d) additional options?

I would like to do c) with Postfix (not Cyrus) but with additional info
if the bounce is non-spam sender, along the lines of
->spamtrap->smtpd->554 ...
->user->smtpd->BOUNCE with link to additional info

Can this be accomplished in a fairly simple fashion with Postfix 2.2?

Thanks,