Windows 7 Device running Outlook 2010 or later won't connect to POP/IMAP server using SSL

Some Mail Servers are now only accepting TLS 1.1/1.2 connections when connecting using SSL, if this is the case you may receive an error similar to this within Outlook: Server doesn't support the connection encryption type.

If you believe this to be the issue you can run the mail server through this Qualys scan:

If TLS 1.1 and/or 1.2 are the only supported protocols and you're running Windows 7 you will need to make sure that Service Pack 1 is installed and then install following two updates;

Reboot if required and then run the attached Reg Key to enable TLS 1.1/1.2 on Windows 7, alternatively the Reg keys are pasted below;

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server]





Have more questions? Submit a request