I'm having some trouble with email communications on an SBS2003 server using exchange.
In my tests, my dns records are only being used for email. And because I'm using OWA to test send/receive capabilities, I've setup DNS accordingly.
A DNS record is set to 'email' at 220.127.116.11 (exchange server). This is the only A Host record setting.
MX record is set to email.domainname.com, which is what's used as the URL for OWA.
MXToolbox shows valid mxrecord for email.domainname.com
nslookup -q=mx domainname shows the following:
C:\Users\SCMGA>nslookup -q=mx email.domainname.com
email.domainname.com MX preference = 10, mail exchanger = domainname.com
Port 25 is open on Exchange server firewall and i can tracert to static WAN IP of Exchange Server network. I have an static route setup to forward from WAN address to IP of Exchange ie 192.168.1.5.
I can't seem to receive email however. Sending is working fine, and from what I've been told, internal email is functional.
Anything I'm missing?