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Sendit enables you to send newsletters and collect subscribers from your blog. You can manage one or more lists and put the subscription form via a shortcode in post/pages or using the Sendit widget. You can extract content from post or pages or create your own content to send to subscribers, now also with featured images. Furthermore, you can edit template for each mailing lists by just writing some html and css code on header and footer. Checkout Sendit Official Website to extend your plugin with a lot of features:

Features

• Add a subscription form in your sidebar or pages
• Mailing list management
• Double opt-in subscription
• Custom post type integration
• SMTP integration

Premium plugins

• Sendit Pro email Template Manager
• Sendit Pro Scheduler
• Sendit Pro Css Inliner
• Sendit Pro Csv Export
• Sendit Pro Google analytics campaign tracker

Changelog

• 2.2.5 Fixes unsubscribe link duplication

Sendit Official Website

Version 2 is completely rebuilt based on custom post type. It gives you the chance to send more than 1 post selected from the custom post type panel newsletter.

All other information (general, changelog, installation, upgrade, usage) you need about this plugin can be found here: Sendit readme.