Boomerang Respondable - Write perfect emails with Artificial Intelligence
Cold Email Hacks - Proven cold email templates and tactics for B2B startups
Mailbutler - Mailbutler adds lacking functionality to email clients and increases your productivity
Cold Email Analyzer by Mailshake - Real-time analysis of email subject lines and copy
Wordzen - We write your emails for you. Literally.
Mailshake - Mailshake lets you build your professional network through a smart and intuitive approach to cold emailing.