ezmlm (http://www.ezmlm.org/) is a mailing-list manager, often associated with qmail MTA (http://www.qmail.org/) and its virtual pop box manager vpopmail. Reply-To: --------- By default, Reply-To: isn't included in the header mails. To do this, you can edit headeradd file in the mailing-list directory (ex : /home/vpopmail/domains///headeradd for me), and add line:: Reply-To: @ No need to restart any services, it works directly. This directory contains a lot of configuration file, see ezmlm site. Mailing-list Alias: ------------------- If you use an alias for the mailing-list email address, you've got an error like:: "ezmlm-reject: fatal: List address must be in To: or Cc: (#5.7.0)" If you wish to allow this kind of alias, edit editor file in the mailing-list directory (ex : /home/vpopmail/domains///editor for me), and add the '-T' option after ezmlm-reject, ex:: |/usr/local/bin/ezmlm/ezmlm-reject -T '/home/vpopmail/domains//'