[Mailman-Users] text/plain flowed wrapping

Steve Foster s.p.foster at leeds.ac.uk
Tue Nov 30 18:39:25 CET 2010

On Tue, 30 Nov 2010, Mark Sapiro wrote:

> On 11/30/2010 7:44 AM, Ralf Hildebrandt wrote:
>> Sounds like an MTA issue. Have you checked that? Should be easy using
>> tcpdump or something along these lines.
> It could be an MTA issue, but it seems to me more likely to be an MUA
> issue. The reason I think it is not as likely to be an MTA is if the
> original is Format="flowed", it would have no long lines so there would
> be no reason for an MTA to do anything to the message in transmission.

Just been looking at this in more detail, the message is being sent with 
the headers:

Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable

The encoding is maintained through the Mailman queues and handlers. At 
some point between it leaving Mailman and coming out the other end of the 
MTA (sendmail) the encoding gets mangled.

I'll dig a bit more deeply in the MTA and see if its playing silly 



Steve Foster			Email: s.p.foster at leeds.ac.uk
Unix team			Phone: 0113 343 7225
Information Systems Services	Fax:   0113 343 5411
University of Leeds
Leeds LS2 9JT

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