Cannot telnet to IMAP server
Posted on 2010-09-22
OK, i am deeply confused:
i have set up an exchange server and enabled all ports on firewall. i am trying to set up remote clients with IMAP, i can set up POP3 but not IMAP. Both POP3 and IMAP are set up with same settings but for some reason if i try the following command on a remote machine:
telnet mail.**********.com 110
it lets me through straight away saying +OK the microsoft exchange POP3 service is ready.
if i try:
telnet mail.**********.com 143 i get the following (after lots of waiting):
...Could not open connection to the host, on port 143: Connect Failed
i can succefully run both these on the server itself using Localhost instead of FQDN, and i can run both on a local machine using the local name of the server instead of the external name.
I have tried disabling Firewall (both ends), Antivirus, and i have double, triple and quadruple checked the firewall settings to make sure port 143 is open and it is.
it seems there is something blocking it but I have no idea what.
I am using exchange 2010 BTW