Luis,

Log into the CUE CLI and do the following:

10.1.10.1# show web session security keylabel
Key Label Is weex-https

10.1.10.1(config)# service imap
10.1.10.1(config-imap)# session security keyLabel weex-https
10.1.10.1(config-imap)# session security mixed
Restart(no enable&enable) IMAP service for the new config to take effect.
10.1.10.1(config-imap)#no enable

10.1.10.1(config-imap)#enable

10.1.10.1(config-imap)#end

10.1.10.1#wr

Let me know how it goes. By the way, if you are trying to use Entourage with IMAP, you might find issues.

Marcos