CritSend is an online application that helps businesses manage their email campaigns. It enables users to create, manage, and analyze their email campaigns in a single platform. With CritSend, users can create professional-looking emails with drag-and-drop templates, manage their contact list, track email open rates, and measure the performance of their campaigns. The application also provides access to advanced features such as A/B testing, automation, and segmentation. CritSend is an easy-to-use solution that can help businesses optimize their email campaigns and increase their ROI.
I was frustrated trying to figure out Critsend, through this I signed up for Mailgun .... seems very easy, I hope it also works well.