I have a weird issue here. we have a Exchange server 2010 environment. Have issue the certificate from a local CA. After we enable the services for SMTP,IIS,POP,IMAP, users decide not to use certificate for POP and IMAP. we have to disable pop and imap We run the command enable-exchangecertificate -thumbprint **** -services IIS,SMTP It doesn't work although it shows successful. Using EMC to do it end with the same result. it still show the 4 services and pop3 user cannot connect without using SSL Does anyone have any ideas why it is so? Need to get this solved. Thanks a lot.

Hi If you in EMC deselect POP service with the "Assign services" in the server configuration and certificates Can you complete the action successfully? Also check your POP configuration And check the POP log while you're connecting to it without using SSL Jonas Andersson MCTS: Microsoft Exchange Server 2007/2010 | MCITP: EMA 2007/2010 | MCSE/MCSA Blog: http://www.testlabs.se/blog

Hi Frost, "it still show the 4 services and pop3 user cannot connect without using SSL" It doesn't matter if you enable the POP3 service on the certificate. You should check the POP3 setting as Jonas said. Server Configuration-> Client Access->POP3 and IMAP4 -> POP3 properties->Authentication If you don't want to use SSL, you should select the "Plain text logon". Frank Wang

Hi Frost, Any updates?Frank Wang

Hi, Jonas and Frank, Thank you so much for your help. Just to recap, when I run the "assign services", it will run successfully however, all 4 services will remain. Then I went in to the POP settings and change to plain text logon", still not able to remove the service (but I did not test pop3 connection from client) After I revisit this website, then I found out that even though it is enable on the certificate, it doesn't matter (as what you all mentioned) as I can overwrite the settings under POP3 authentication. So to say, everything is working now, you guys have been a savior... really appreciate it. Frost