Getting error on port 995

[Bhushan Bhosale]

Dear Team,
I'm getting issue with port 995 by using Microsoft Outlook 2016 only. The error 
on Microsoft Outlook showing "Your server does not support the connection 
encryption type. Try changing the encryption method". The error is only who is 
using Microsoft outlook2016. Kindly help.
Thanks and Regards,
Bhushan Bhosale