ActiveInbox VS Email Pet

Sanebox - SaneBox is a cloud-based service that allows users to filter and manage their emails.

SpamTitan - Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.

Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Covideo - Covideo is a Video Email Platform for Businesses that enables companies to communicate quickly and effectively with their customers.

Ebsta - Capture every email and business contact inside Salesforce.

Vade Secure - Email security to protect against email-borne phishing, spear phishing, malware, and ransomware. Email security and management based on artificial intelligence.