[Mimedefang] Overlong line in RESULTS file and sendmail confMAX_HEADERS_LENGTH

Roberto Ullfig rullfig at uic.edu
Mon Feb 16 15:42:35 EST 2009

Have been getting some of these messages today:

Feb 16 13:56:28 clientmq-3 mimedefang[19145]: n1GJt7KB012211: Overlong 
line in RESULTS file - 25940 chars (max 8191)

generating a 451 error.

I looked at the qf files and they have Subject lines with over 25K 
characters. I noticed that sendmail has this setting:

confMAX_HEADERS_LENGTH  MaxHeadersLength
                    [32768] Maximum length of the sum
                    of all headers.

It would seem that sendmail and mimedefang are at odds here. Sendmail 
allows 32K headers but mimedefang only allows 8K headers. Is that what 
I'm seeing? Am I understanding this right? If so, wouldn't it make sense 
to reduce sendmail's confMAX_HEADERS_LENGTH to 8191? The way we have 
things setup I'd much rather have the message get rejected by sendmail 
instead of mimedefang.

Roberto Ullfig - rullfig at uic.edu

More information about the MIMEDefang mailing list