I was using the Resent-Sender header on the mailing lists to filter my e-mail. When the mailing lists were switched over last night, the header disappeared and I ended up with dozens of messages in my inbox. :-( Could you add the Resent-Sender header back onto the mailing lists again? It was much easier to filter e-mail with them rather than filtering by the To: and Cc: fields. Thanks, - Jim