DSubscribers

Official Sendmachine plugin featuring subscribe forms, users sync, news feed, email sending and transactional campaigns.

Display the number of MailChimp subscribers you have on your WordPress site.

Allows visitors to easily and quickly subscribe to your website with double optin, email templates, notifications, block spam.

Integrates Gravity Forms with SendGrid, allowing form submissions to be automatically sent to your SendGrid contact lists.

This plugin allows your blog visitors to subscribe to your blog via email and receive notifications whenever you create a new post.

Map Contact Form 7 submissions to MailPoet subscribers with per-form field mapping, consent control, list selection, and error logging.

DMaps creates a custom metabox in post types including custom post types. Also you can create maps via [dmaps] shortcode.