I have Windows Small Business 2003 Server. I can receive e-mail. When I sent out e-mail, I cgot SMTP 550 Verification failed. Someone use my SMTP relay to send out a lot spam e-mail. How can I fix this problem?
Hi, These 2 things does not necessarily have anything to do with each other. Exchange 200xx server is not by default an open relay so you must have echanged something - see http://www.msexchange.org/tutorials/MF005.html How to you send external mails (using DNS or smart-host)? Sounds to me like you are using a smart-host amd taht this smart-host require you to authenticate before sending. Leif "stephenyu" skrev i meddelelsen news:875913B6-14FE-409D-BAAD-D8B2CAF17182@microsoft.com... >I have Windows Small Business 2003 Server. I can receive e-mail. When I >sent > out e-mail, I cgot SMTP 550 Verification failed. Someone use my SMTP relay > to > send out a lot spam e-mail. How can I fix this problem?
