The error is pretty self-explanitory. The server has not been properly configured to allow proper relaying. Unfortunately, this is not something we can help you with here - we're UBB experts, not MS SMTP server specialists. <img src="https://www.ubbcentral.com/boards/images/graemlins/smile.gif" alt="" />
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Charles Capps
UBB.classic™ Developer
Having problems? Open up a support ticket!