Re: dropping long, long header fields (was Re: why is this failing?)

[http://dummy.us.eu.org/robert (robert)]

 > From: Jim Osborn <http://www.eskimo.com/~jimo>
 > Date: Thu  Dec 24, 11:53am
 >
 > Wouldn't it be pretty easy to make up test mails to run through it?
 > If your hypothesis is correct, there should be some header length
 > that fails, and then you can chase down the cause.  I've encountered
 > some pretty long Received lines, but never anything that failed the
 > way you're describing; must have been REALLY long!
 > 
 > Do let us know what you learn.

You were right -- it's nothing to do with procmail nor even formail.
After much experimentation, I determined that it's an unfortunate feature
of my MUA (mush).  "mush" deletes the Bcc: line (this was the long line)
before it reaches sendmail.  So, formail was handling what it got
correctly.  Argh!  I hacked it so I set an environment variable before it
reaches the procmail script to send the mail and reappend the bcc line.

Sorry for this.