I have recently configured ISA server and put my web servers and Mail server behind it. Everything worked perfectly up until two days ago when I got back to the office I met the following alerts "Server Publishing Failure" The Server Publishing rule is configured incorrectly". I am still able to receive mail from my mail server but am unable to send all my emails come back undeliverable. The publishing rules i have configured are. DNS Query Server DNS Zone TRansfer and I ran the Secure MAil sever Wizard. Can someone help me. __________________________________ Do you Yahoo!? Yahoo! Calendar - Free online calendar with sync to Outlook(TM). http://calendar.yahoo.com