Secure email with digital signature

A little while ago I got a free secure email certificate with digital signature from Comodo and installed it in my computer...I require encryption and digital signing of emails I send from my computer some times... :) ... Allah Akbar...Allah is great... ( Location : Male'...Date : Friday 3 March 2017...Part of the day : Morning...Time : 8:38 AM...Weather : Cloudy...Temperature : Cool )