Bowie Bailey writes:
On 9/9/2014 7:45 PM, Sam Varshavchik wrote: > Bowie Bailey writes: > >> >> My test case was an email delivered directly from Thunderbird to Courier >> and then cc-ed to the second server via maildrop. The only thing I can >> think of is that maildrop is adding the header before sending the cc. > maildrop should be adding the From_ header only if it's delivering mail to> an mbox mailbox. Actually, maildrop will also emit a From_ line if a message> is sent to an external filter via xfilter. > > I think the message is being filtered through an xfilter command. The> command executed by xfilter emits an extra blank line before the contents of> the filtered message, and maildrop reads it back in, like that. No xfilter on this system. /etc/courier/maildroprc is doing nothing other than importing a couple of variables. The user's .mailfilter file just has a couple of delivery lines. I see the From lines in emails delivered to my maildir as well. Here is the one from the list message I'm replying to: From courier-users-boun...@lists.sourceforge.net Tue Sep 9 19:46:35 2014 There are actually two identical From lines in the message. One was apparently added by maildrop on the external server when it cc-ed it in and the other was added by maildrop on the internal server when it delivered to the maildir. Actually, I just noticed something looking back through my old emails. The From lines are only there on messages newer than Jun 24. This corresponds to the date I upgraded the server from Courier 0.65.0 to Courier 0.73.1. The external server was upgraded from Courier 0.69.0 to 0.73.1 just prior to that. I can see that this server also started adding the From line to the cc-ed emails at this time. There must have been something that caused this change in behavior between version 0.69.0 and 0.73.1.
I don't have any From_ lines in any message in my maildir. Something else is adding those, at some point before mail gets delivered.
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