Brad Knowles writes:
The problem is that the people who can fix this problem are over on the list that Barry identified. Any discussion anywhere else is not likely to go anywhere, at least not as far as Python & Mailman are concerned.
So, get your experts to go have the appropriate discussion over there, or at least talk about the summary of the discussion.
This is not a problem that can be *defined* by experts, who are generally going to be using conformant, well-behaved software. Sometimes there will be issues, but they're less likely and Mailman Users are probably among the most likely to encounter large collections of users who all use software with the same issue.
Solutions should be proposed and discussed on email-sig, that's the appropriate place for that.
To all: Please, if you have an issue with Mailman's folding of headers, bring it up on the email-sig and/or the Python tracker. I don't know that something will be done soon, but those are the right places to collect reports. For tracker submissions, I suggest the phrase "email header folding" should be in the summary to make search easy (you won't find any yet, though).
You can see what's been happening with the email module recently here:
To submit a bug report, I think you need to register with Sourceforge. It's not hard, and AFAICT (I've been registered since the prerelease trial) it's never been a source of spam or anything like that.