Easily send email from your WordPress site through Mailgun using the HTTP API or SMTP.
The wpMandrill plugin sends emails that are generated by WordPress through Mandrill, a transactional email service powered by MailChimp.
Calculated Fields Form is a plugin for creating forms with dynamically calculated fields and display the result.
Super Cool Plugin for inserting all kinds of Social Bookmarking & Sharing buttons. Has customizable Floating Share Bar, Widgets, Shortcodes also.
Adds a customizable good looking HTML email template to all WP default text/plain emails and lets you set a custom sender name and email address.
Subscribe to Comments Reloaded allows commenters to sign up for e-mail notifications of subsequent replies. Don't miss any comment.
Add follow me social buttons. Uses font icons, ready for Retina Display.
Encode mailto links, email addresses, phone numbers and any text to hide them from (spam)bots. Mailto links will be protected automatically.
Check email allows you to test if your WordPress installation is sending emails correctly by sending a test email to an address of your choice. Allows
Easy coming Soon plugin allows you to quickly create a launch / under construction page for your website. Collects e-mails and connect with users on S
Email Before Download presents your users with a form where they submit information, like their name and email address, prior to receiving a download.
Displays a list of social media website icons and a link to your profile.
Configure a SMTP server to send email from your WordPress site. Configure the wp_mail() function to use SMTP instead of the PHP mail() function.
"Ktai Entry" is a plugin to post to WordPress by email. You can attach images and/or use pictograms in the message.
HubSpot Marketing Free is an easy-to-use contact form and marketing analytics plugin for your website that helps you better understand your website vi
Simple customizable plugin that displays a name/email form where visitors can submit their information, manageable in the WordPress admin.
Postie allows you to create posts via email, including many advanced features not found in WordPress's default Post by Email feature.
Allows you to edit the WordPress Welcome/Forgot Password Emails to customise the content and even add an attachment.
Easy Contact is a simple, highly extensible XHTML contact form featuring spam-reduction measures, GUI customization, and shortcode-based insertion.
Helps increase social media presence by asking visitors "to pay" for your content with a tweet, plus one, or a like.
Use your email address instead of a username to log into your WordPress.
WP SendGrid routes all emails through SendGrid to improve deliverability
YITH WooCommerce Catalog Mode, a plugin for disabling sales in your e-commerce and turn it into an e-commerce into an online catalogue.
PopupAlly allows you to create advanced popup signup forms in under 5 minutes without the need to deal with messy code.
Create beautiful optin forms with ease. Choose a form design, customize it, and add your form to your blog with a simple mouse-click.
Starbox is the Author Box for Humans. Professional Themes to choose from, HTML5, Social Media Profiles, Google Authorship
Allows the site editors to send an e-mail to the blog users. Credits to Catalin Ionescu who gave me (Vincent Pratt) some ideas for the plugin and has
Magic Action Box let's you display professional looking opt-in forms and feature boxes in your WordPress site.
Social Login, Social Sharing allows login, share, comment, register using any social media like Twitter, Google, Facebook, VK. EASIEST to configure.
Automatically generate, email and download PDF documents with Gravity Forms and Gravity PDF.