Exchange not receiving domain email.

[saniri]

Hello,
This is a fresh install of a SBS 2003 server. I am using example.local and than example.com as domain names for local and external domain names.

Exchange is configured to handle external pop3 accounts i.e someone@verizon.net and someoneelse@rr.com and than forwards the email to local users. SMTP is configured to use ISP's email server also.

Problem is I am also hosting the company website and email i.e example.com. Users are able to get email from external email account i.e verizon.net or rr.com but they can not get the email sent to someone@example.com(company's offical site and email) everyone can send emails fine using the someone@example.com address but can not get replie to it. This is really problematic as exchange by default is sending all return addresses on all pop accounts as someone@example.com(the user's local account and company email address). I have already checked the firewalls, MX records. all are reaching fine to the server. Server itself is just not accepting emails.

 

[Daire]

You've said that you have checked the firewall so i presume port 25 is open and NATed to the server IP address?

 

[saniri]

Yes. I have tested the port. It is correctly pointing to the server.

 

[58sniper]

From outside your network, what happens when you attempt to telnet over port 25 and send yourself an email? What errors do you get? Anything in the event logs?

Pat Richard, MCSE MCSA:Messaging CNA
Want to know how email works? Read for yourself -

http://www.ietf.org/rfc/rfc2821.txt

 

[saniri]

Finally figured out the issue. For some really odd reason the server was operating on port 26 and of course I have only port 25 opened on the firewall. Switched the port to 25 and it works like a charm. Thanks to you both for helping out.