[Mailman-Users] 64 bit encoding

Mark Sapiro mark at msapiro.net
Wed Nov 4 12:10:04 EST 2015

On 11/03/2015 06:42 PM, Ruben Safir wrote:
> I'm converting my mailing lists from majordomo to mailman using postfix.
>  A lot of little issues have cropped up but the biggest problem I have
> currently is that it seems that mailman is converting files to 64 bit
> which is screwing up my home cooked archives but good.

Actually, Mailman is sending messages in UTF-8 character set as base64
encoded. Actually, many MUAs will also base64 encode UTF-8 message bodies.

This is actually a python email library thing. You can change the
encoding for UTF-8 message bodies with the following patch to
Mailman/Message.py, but if your messages are not predominately ascii
text, you won't like the result any better.

diff -u 2.1/Mailman/Message.py 21/Mailman/Message.py
--- 2.1/Mailman/Message.py	2014-05-17 18:34:20.240159000 -0700
+++ 21/Mailman/Message.py	2015-11-04 08:50:31.772899979 -0800
@@ -36,6 +36,10 @@
 from Mailman import mm_cfg
 from Mailman import Utils

+                          email.Charset.SHORTEST,
+                          email.Charset.QP,
+                          'utf-8')

 mo = re.match(r'([\d.]+)', email.__version__)

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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