We tried, but could not find /doku.php/faq:everydayuse:citadel_sends_my_mail_out_with_a_different_from_than_i_specified_in_my_email_client?do=login§ok=d9c06f0b6fadd7a190e5386e5d546988
But hey, you don't have to leave empty handed!
Here are some things you can try instead: