Hei Ber wrote:
Brion, thank you for finding a fix for this severe bug. Could you please clarify for the technically less advanced (i. e. me), if your workaround is already installed in all wikimedia-projects of if there are further steps to be taken in order to fix this bug on all wikis?
Yes, it's set sitewide.
Mark's looking to see if he can easily adjust our hub mailer (running on exim) to override the envelope sender for mails sent from MediaWiki. (They're all marked with an X-Mailer header, making them easy to filter). This will allow us to switch back to putting user addres in the 'From' line safely.
-- brion vibber (brion @ wikimedia.org)