Since yesterday we have not been able to send any mails from our account via outlook 2007. We have done all the possible troubleshooting on Outlook and nothing seems to work. Happens only on windows XP system. 

Can someone throw some light on this issue and how to fix it.

ERROR: " 0x800CCC1A. Your server does not support the connection encryption type you have specified. Try..."

Regards,

Arpan.