I have exchange server 2003 set up on server 2000. I am able to send mail and receive mail INTERNALLY. I am able to RECEIVE mail externally (from internet) I cannot SEND mail externally. I saw another post with a problem like this but no solution.
My messages go out with no error in outlook. When I look in the Exchange Manager and in the Queue..All my messages are queued waiting to go out. When I click on it says "An internal DNS error caused a failure to find the remote server." Nothing about DNS in the event review. I have set netgear router to forward port 25 to the ip address of exchange server. this is the smtp log file:
#Software: Microsoft Internet Information Services 5.0
#Date: 2005-05-04 00:31:36
#Fields: time c-ip cs-method cs-uri-stem sc-status
00:31:36 xx.xx.196.50 HELO - 250
00:31:36 xx.xx.196.50 MAIL - 250
00:31:36 xx.xx.196.50 RCPT - 250
00:31:38 xx.xx.196.50 DATA - 250
00:31:38 xx.xx.196.50 QUIT - 240
btw, my DNS MX record is set to my ISP's IP and is working since im able to RECEIVE mail. I have tried putting an smtp connector to mail.optonline.net (my ISP) and still doesnt work.
Any help would be greatly appreciated. Thanks