[Mailman-Developers] Puzzling doubled-period bug

[Mark Sapiro]

A.M. Kuchling wrote:

>I've run into a puzzling problem that I can't yet reproduce: our
>Mailman installation sometimes doubles periods in the HTML portion of
>a message, sometimes breaking a link or image as a result.  Does
>anyone recall seeing this before?


I've never seen this that I recall.

Look at section 4.5.2 of RFC 2821 (or the same section 4.5.2 of RFC
5321). While this doesn't seem relevant to your example, it's the only
thing I can think of that doubles periods.

Possibly, the lines in the message are long and some MTA is breaking
them for transmission and a line just happens to get broken so it
begins with a period which is doubled, but somehow the receiver
doesn't see the line break and doesn't undouble the period.

The fact that this only occurs in HTML is additionally suggestive of
long lines being involved.

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