Mailster v2.2.16 is an easy to use Email Newsletter Plugin for WordPress. This WordPress plugin will help you to Create, send and track your Newsletter Campaigns without hassle. This WordPress Plugin features are Track Opens, Clicks, Unsubscriptions and Bounces, Track Countries and Cities, Schedule your Campaigns, Six types of auto responders, Webversion for each Newsletter, Embed Newsletter with Shortcodes, Forward via Email, Share with Social Media Services, Unlimited Subscription Forms, Sidebar Widgets, WYSIWYG Editor with code view, Background Image support, Quick Preview, Revisions support, Multi language ready, SMTP support, DomainKeys Identified Mail Support, Import and Export for Subscribers, Retina Ready and much more.