EasySendy Pro - a web application, register, launch instantly and connect with SMTP relay servers of your choice to send emails. It Connects with Amazon SES, Mandrill, SendGrid, Sparkpost, Leadersend, Elasticemail and MailGun.
With EasySendy Pro you can split test email deliveries across the relay servers and check reports, track email clicks, opens of each email campaign. It also has smart autoresponder and advanced email list segmentation based on subscriber interactions.
Email campaign re-engagement and automated email list segmentation are the unique features, which help to send hyper targeted email to the end subscriber.
Overall, EasySendy Pro is completely geared towards driving high email open rate.