Comment 5 for bug 736849

While I am sympathetic to the fact that this change impacted some user defined filtering settings in procmail or your MUA, at least this was something that you had set up yourself and were able to fix yourself. The underlying issue of the display of From: information by MS Outlook in the presence of a Sender: header is not something that a user can control other than by changing to a different MUA which may not even be an option.

In any case, the change has been released, and changing it back at this point could be just as disruptive.

Also, I'm not sure that a list or site admin is in any better position than I am to determine how much user impact this change might have, and I'm not about to start adding a whole list of "make this feature work the old way" list settings or list-member settings as I think that would be even more disruptive in the long run, and since Mailman is open source, the site admin always has the option to back out the change.

Do you have any actual statistics on how many people's procmail recipes or MUA filters are impacted by this change. I suspect it may not be nearly as many as you imply.