Developers of Sympa

[Adam Bernstein <address@concealed>]

Hi guys.  Yesterday I submitted a bug report about the fact that 
Sympa-generated messages with base64 encoding are displayed without any 
line breaks in Eudora and at least one other email client, even though 
Thunderbird (and Pine and mimedecode) decode and display them properly. 
The problem did not exist in 5.1.2, and arose only with our upgrade to 
5.3.4, where I can see in at least one place in mail.pm that the 
MIME/base64 code has been greatly enhanced.

I realize this may really be a bug in Eudora et al., and the best answer is 
for our users to migrate to a better and currently supported email client, 
but there are reasons that this particular client can't do that, and we're 
probably going to lose them as a client if we can't fix the problem on our 
end.  So I'm looking for any help you can offer.

Does your greater knowledge of MIME behavior suggest any way that we can 
recode message content or insert "harder" line breaks that might be 
respected by decoders that currently see none?  Or, can you suggest ways to 
modify the Sympa code to avoid base64 entirely, perhaps using QP instead? 
What did Sympa do before the recent MIME enhancements in mail.pm?  Can we 
just remove them?  Or should we try converting to 8-bit?  Would that just 
mean losing a few odd characters here and there?  We'd be fine with that at 
this point.

Bug report is at 
https://sourcesup.cru.fr/tracker/index.php?func=detail&aid=3698&group_id=23&atid=167

Any and all help will be greatly appreciated.

     adam