We started using "$MaxMIMEParts = 40;" after some trouble with a user who had two accounts forwarding to each other. Once one side filled its disk quota it started bouncing with the original as a mime attachment, and after a while the mail system got bogged down. It had a couple of hundred parts before the end.
I pulled 40 out of the air, but I've never seen mail with more than 10 parts so it seemed pretty generous.
Now a user thinks he sent a message with one attachment, and got snagged by it. I wish I had more information logged. Sendmail's from= syslog line shows me it was "size=1610247," which looks pretty long for what the user described. So I think the filter did what it was configured to do.
It would be great to know how many parts it really had. Or is that not even known-- does it just halt when it reaches our limit of 40?
And do we collectively have any idea whether 40 is too low?
Joseph Brennan Academic Technologies Group, Academic Information Systems (AcIS) Columbia University in the City of New York
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