We tried, but could not find /doku.php?id=faq:everydayuse:citadel_sends_my_mail_out_with_a_different_from_than_i_specified_in_my_email_client&do=login§ok=93d6e84e207538a2191ce8786aefc83e
But hey, you don't have to leave empty handed!
Here are some things you can try instead: