Ever since I added a second network card to my UNIX server I get error messages that say this: ----- Transcript of session follows ----- ... while talking to mail.sanofi-synthelabo.com.: >>> MAIL From:<@@society.massmed.org> <<< 553 Invalid address syntax 501 <[log in to unmask]>... Data format error Why am I getting the @@ before the name? Do I need to call the internal network connection something else instead of society? Thanks! Margaret J. Brandt MMS/NEJM Technology Projects Coordinator [log in to unmask]