We are running exchange 2010 under windows 2008 R2. Clients using outlook 2010 to access POP3 via SSL. Everything worked well until yesterday - clients accessing via outlook 2010 got error code 0x800CCC1A.
When I tried to telnet port 995, I got: -ERR Connection is closed. 13
Telnet to SMTP is still working. OWA is working well..
Any suggestions are highly appreciated!