[Mailman-Users] No subscription is made despite confirmation

Stephen J. Turnbull stephen at xemacs.org
Thu Feb 14 21:18:21 CET 2008

Henrik Rasmussen writes:
 > Stephen J. Turnbull wrote: 

 > >Your user is sending mail with raw 8-bit characters (in this case
 > >probably meaning "ø") in the headers.  This is forbidden by RFC 2822.
 > >The universally accepted way to do this is by using MIME encoded words.
 > That's plausible. The mailheader of the confirmation reply contains
 > "This is a MIME message", but the message seems to be multipart
 > MIME, containing both

That's weird.  That leaves open the possibility of a bug in Mailman
(ie, it's decoding the header then passing it to the email module).
Does the message contain the MIME-Version: 1.0 header?

Of course it's possible that the MUA is just inserting those headers
but it's a lie (the MUA thinks that's enough to let it get away with
just putting UTF-8 *anywhere*).  But note that 0xF8 is illegal in
UTF-8 (for several reasons), so most likely that is intended as an ISO
8-bit character.

Do you agree that the interpretation of 0xF8 as "ø" is likely here?

 > >The only reasonable solution is to get your users to stop doing that.
 > >This may require them to subscribe that address from a different MUA.
 > This would not be a practicable solution, since we have subscribers
 > from around the world.

The alternative is far worse, though:  to ask "Søren" to spell his
name as "Soren".  :-(

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