I'm having exactly the same problem.
Under Emails > Edit Email > Mail account
When I try to enable pop on port 110 I get the following message in Safari:
Safari can’t open the page.
Safari can’t open the page “http://DOMAIN/help/scp/admin.php?t=email&id=1”(http://DOMAIN/help/scp/admin.php?t=email&id=1”) because the server unexpectedly dropped the connection. This sometimes occurs when the server is busy. Wait for a few minutes, and then try again.
However I know the POP server is responsive on that port because I can login with the same credentials over telnet.
But when I try pop with SSL on port 995, I get:
Under password field: Invalid login. Check POP settings
Under mail account: Can't connect to pop3.DOMAIN,995: No route to host
Again, I know this is a valid login because Gmail can retrieve successfully using these settings.
PHPinfo() shows the IMAP module is loaded
IMAP c-Client Version: 2004
SSL Support: enabled
Kerberos Support : enabled
Please could someone point me in the right direction?
Thanks
James