Hi Guys
I'm having issue with Exchange Server 2003 R2 Enterprise, it was working perfectly (local and external), all of the sudden sending and receiving local mails successful, sending mail to external mail bounces back with error code: "5.5.0 smtp;553 sorry, that domain isn't in my list of allowed rcpthosts" when using the mail hosting SMTP (GoDaddy), not, when i configure Exchange server to use smarthost, there was no error but when i go Exchange System Manager, it's in the queue "Retry"
Steps taking:
- Configure smart host for SMTP routing
- Configure DNS forwarder to Google DNS, ISP DNS, etc.
- Perform Kaspersky antivirus scan
-Uninstall antivirus
Still to no avail
Please help
yours affectionate Niyi Okunola