In my daily report: The following n subscribers are currently being monitored: Err First Last Address --- ----- ----- ------- 2 08/13 08/13 [log in to unmask] Last error: Mailer whosis3.whatcha.NET said: "501 5.7.1 This system is not configured to relay mail from <[log in to unmask]> to <[log in to unmask]> for 332.222.1.21" Again, can anyone explain in layman's terms what is happening here? (One more coming...) Thanks again, Christine in Littleton, Massachusetts