We have Exchange 2003 installed on Server 2003 on our domain with ISA 2006.
Several days ago i changed both sender and recipient filters and applied it over the SMTP protocol, after couple of hours i noticed we are not receiving any email from outside, i undid my changes and still, i have been looking for few days for what is the problem but useless
i tried telnet with 3 of my friends one in the same city (result are ok) and the two are in UAE and Ukraine (not even pinging)
i tried localecho but i received nothing and when i hit enter i get connection to local host lost
I’m out of the ideas, could someone help me please