Am 03.01.2012 19:56, schrieb Brion Vibber:
line 195 $headers['X-Mailer']='MediaWiki mailer';
I don't see any reason to change that; X-Mailer is a low-level header which
says things like "Outlook", and we would expect it to say the low-level
software used if it's there at all. Users will never see it unless they go
picking at the raw headers of the mail.
Yes, I am also not in favour of changing anything with the low-level header.
Perhaps the original requester wanted a change of the sender addresses
$wgEmergencyContact = "sender <e-mail>";
$wgPasswordSender = "sender <e-mail>";
Email notifications are sent with the $wgPasswordSender address an name
(see line 622