[Mimedefang] timeout before data read / smfi_chgheader returned MI_FAILURE

[Aleksandar Milivojevic]

Jurgen Botz wrote:
> MIMEDefang suddenly stopped working on one of my servers this
> morning.  I get the following errors... anyone have any idea
> what might be causing this?

There was discussion about this last week.  You probably set Milter 
timeouts in sendmail.mc (INPUT_MAIL_FILTER line) too low.  You got large 
email, MIMEDefang wasn't able to process it in less than timeout time, 
sendmail rejected mail with tempfail (as you instructed it to do when it 
timeouts in the very same INPUT_MAIL_FILTER line).

Try raising timeouts to at least 15 minutes.  If you are accepting huge 
emails (definition of huge 10MB or larger), half an hour or even an hour 
(if you don't have any limits on the size of emails you accept) might be 
good idea too.  More than one hour doesn't make any sense (remote side 
will usually timeout after one hour of waiting for response from your 
sendmail).

-- 
Aleksandar Milivojevic <amilivojevic at pbl.ca>    Pollard Banknote Limited
Systems Administrator                           1499 Buffalo Place
Tel: (204) 474-2323 ext 276                     Winnipeg, MB  R3T 1L7