http://www.msexchange.org -------------------------------------------------------Hi, This is the problem for my domain, which I posted here before. As I searched, I found that I should have Reverse DNS. You can check your domain on DNSStuff.com in Reverse DNS Lookup part (It gives you some good information). Some domains like AOL/AIM , Web.de ,... check this feature. Hope This Helps. Kimiagar. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ------------------------------------------------------- List Archives: //www.freelists.org/archives/exchangelist/ MSExchange Newsletter: http://www.msexchange.org/pages/newsletter.asp MSExchange Articles and Tutorials: http://www.msexchange.org/articles_tutorials/ MSExchange Blogs: http://blogs.msexchange.org/ ------------------------------------------------------- Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------- To unsubscribe visit http://www.msexchange.org/pages/exchangelist.asp Report abuse to listadmin@xxxxxxxxxxxxxx