> However, when I have our program send > an email to listserv to distribute the information, the > listserv sends the > mail out but it gets stuck at the Exchange server. Exchange > responds with > an error that a mailer is trying to send mail out. > Mark you have to explicitly configure your Exchange server to allow relaying *from* your LISTSERV box. It's done slightly differently in Exchange 5.x and 2000 so if you need help mail me privately and I'll step you through it. -- Chazzozz!! Michael Shannon Webmaster [log in to unmask] "Before you can grow old and wise you must first survive being young and stupid." - Ancient Proverb Note: Opinions expressed on this list are my own and do not reflect the views, opinions or position of my employer. If swallowed, seek medical advice.