Having an external SMTP issue with 2003 SBS.
The server is not accepting connections on Port 25 from external only!. Telnet to Port 25 on the internal network is 100%.
The DNS, F/Wall, Port Forwarding is all 100% corrrect - all other port forwards for RDP, SSL etc are working fine.
The Server just won't allow me to connect from external to Port 25.
To date I have:
Re-Run the Internet/E-mail connection Wizard
Re-installed Exchange from master SBS disks
Re-applied all Service Packs/Updates
There is no malware of any kind on the machine
All external DNS for mail forwarding is 100%
I am truly stuck - any help is gretly appreciated.