I have an SBS 2008 server which runs Exchange 2007 SP3 UPdate Rollup 11.
Today I changed the subnet from 192.168.1.x to 192.168.202.x
I had to manually change 1 DNS entry and aslo the IP address for the exchange send and receive connectors.
I cannot receive email. Sending works fine but the receive fails.
I have event ID's 1017 and 1019.
The Fix my Network Wizard says "Exchange SMTP Connector is Invalid"
If I telnet to my mailserver on port 25, I get this: 421 4.3.2 Service not available, closing transmission channel
How do I find and correct this error?