Another "feature" is that the mail address used in the from messages sent to the list is _not_ taken from the commit author field, but from an email map (sip-router/email_map on git.sip-router.org), which maps the username on git.sip-router.org to an email address. So if you want to change your email you _have_ to edit this file or ask someone to change it for your. This was done to have proper "From:"s for cvs2git and svn2git imported commit messages and might be removed in the future, but for the time being this is the way it works.
Andrei