I'm not sure if this got through the last time. I received an email saying it was rejected but I also got a message from the list??? Hi All, I have an unusual problem. There is a person I send a couple emails to daily (external email). Invariably, the first email I send each day gets rejected: ( There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <server.domain.mycompany.com #5.5.0 smtp;550 Requested action not taken: mailbox unavailable>) ...and subsequent email are delivered. Any thoughts. This is obviously a "nagging" problem" rather than an "urgent" problem. Thanks Bunches, Kelli Kelli Mariah Irwin kirwin@xxxxxxxxxxxxxxxxxxxxxx http://www.appliedperformance.com/