Sending this text over Jabber:
2002 W Chicago Ave
Chicago, IL 60622 US
leads to sending this xhtml:
which is then converted by gaim_markup_linkfy() in serv_got_im() to:
Note the bolded area -- one of the xmlns tags got linkified and is therefore highly invalid.
I'm not sure what the solution is for Gaim... I don't want gaim_markup_linkify() running at all on messages being passed to Adium, and I just noticed this because a patch to keep it from being called wasn't applied to our libgaim build.