[Mailman-Users] text/plain flowed wrapping

Mark Sapiro mark at msapiro.net
Tue Nov 30 17:30:43 CET 2010

On 11/30/2010 7:44 AM, Ralf Hildebrandt wrote:
> * Steve Foster <s.p.foster at leeds.ac.uk>:
>> HI Folks,
>> I'm trying to track down where a spurious "!" is being injected into
>> a number of lines in a text/plain message that is being wrapped at
>> about 990 chars.
>> The "!" doesn't appear in the copy in the archive, just the email
>> that is sent out. I've been lookin in the code in pythonlib/email and
>> pythonlib/smtplib but can't see anything glaring. The only mention of
>> RFC3676 is in Handler/Scrubber which appears to be the relevant RFC.
>> Anythoughts?
> 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.

It is clearly not a Mailman/Python issue, at least with the versions in
use by this list, since the OP as delivered to me from the list and
viewed with Thunderbird did not show any spurious "!" or line break in
the "before" example text.

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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