[Mimedefang] smfi_chgheader returned MI_FAILURE

[David F. Skoll]

Mark London wrote:

> Ok, I just bypassed mimedefang in order to get the bad mail delivered to
> me, and the only thing that looks weird about it, is a very very long
> References header line.  Could that have caused the problem?

possibly, but....

> /var/log/maillog:Apr 21 12:28:34 psfcsv1 sendmail[1251]: l3LGRYZX001251:
> Milter (mimedefang): timeout before data read
> /var/log/maillog:Apr 21 12:28:34 psfcsv1 sendmail[1251]: l3LGRYZX001251:
> Milter (mimedefang): to error state

That's the real problem; the milter timeout is too short for the message.
You need to increase the "T=..." timeouts in your Sendmail config
file.

> /var/log/maillog:Apr 21 12:28:47 psfcsv1 mimedefang[28925]:
> l3LGRYZX001251: smfi_chgheader returned MI_FAILURE

That's just a symptom of the fact that when MIMEDefang finally
finishes processing the mail, the associated Sendmail process has already
quit.  The real cause is the timeout.

Regards,

David.