Hello,
My company recently upgraded from exchange 2003 to 2010. The upgrade went find but now a week later, there are 3 folks that cant receive emails from outside the domain. I checked the active domain settings and everything there is correct. I looked in the email accounts and the settings are fine. The ports are open.
Here is the odd part. We have 5 active domains on this one exchange. One is @gl****llc.com and another is @gt-sol. All the other users are able to get external emails except for these 3 users. It will happen on there outlook on windows and webmail. Im not sure what is going on or what the problem might be. Please let me know if you need additional information. Im lost.