I have an aggrivating problem which is I am hoping is something simple..
I have Exchange 2007 on Server 2008. My firewall is Netgear FVX538 and we are running TrendMicro IWSS and Scanmail on the network.
I know that I have IMAP set up properly on the server because I can telnet into it and pull the inbox, etc. using command prompt with no problems.
However, I cannot get it to work offsite. I am sure this is pointing to my firewall, but I cannot figure out why it will not work. I get a connection refused message when trying to use canyouseeme.org port checker.
I cannot figure out what the problem is. I have tried to check my firewall logs and I do not see anything in there for port 143 (dropped or allowed). We are on business class internet service with Cox and there are no ports blocked.
I have the port configured exactly the same way that I have SMTP and POP3 set up (those work). Which is the following:
In the Netgear, I have a custom service setup that starts and ends on port 143 (TCP).
Then in the Inbound rules, I have a rule set up that is set for the aforementioned service, ALLOW always, Send to LAN server x.x.x.21 which is my Exchange server, translate to port 143, WAN Destination IP address: WAN1 (which is where this server is located), LAN users: ANY, WAN Users: ANY, LOG Always:
Am I missing something simple here? Thanks!