WP Easy Leads is a lead generating plugin that lets you create your own lead page to capture lead.
Safe Signup Form is a WordPress Plugin that will forward a form submission to an email address, while preventing most automated attacks.
Beautiful AJAX login and registration popups for your website.
Simple WordPress Constant Contact Plugin to take name and email and allow to send that information straight to Constant Contact
Styled user management for login, register, user profile... - optional: user chosen passwords, e-mail validation, admin approval, reCaptcha and more
Allows you to enter national characters (special characters) in username during registration.
Get the WordPress eFlyerMaker's Newsletter Sign Up Forms Builder Plugin. Ready-to use, 100% customizable, Including more than 75 specials effects
Easily add BudgetMailer newsletter sign up forms to your WordPress website with the offical BudgetMailer Sign Up Form plugin.
Add a Knews subscription field to your Gravity Forms forms
The Request Access plugin is intended for WordPress website owners who want to allow people to sign up for their website in a controlled way.
Take control. Map and Sync user fields between WordPress and any plugin, (like WooCommerce, user registration plugins, etc).
This plugin protects your WPMU signup process against spambots with a simple math question.
Allows the admin of the site to approve or deny users manually, after they have registered.
Add a ShortBurst newsletter sign up widget to your WordPress website or blog.
eCommerce Shopping Cart plugin backed by a powerful order and inventory management service.
Official Sendmachine plugin featuring subscribe forms, users sync, news feed, email sending and transactional campaigns.
Get more email contacts by adding a subscribe widget to your WordPress blog. You need a free account on Minutemailer.com to use the plugin.
Volunteer self-registration made easy. Without leaving your WP site. No hassles. No need to change any PHP or CSS file!
Add a simple MailChimp form to any page, post or template file using shortcodes. Quick and easy!
Allows administrators to restrict user login based on user roles.
Adding widget with subscribe form by MailChimp. You can change the design of the widget to attract attention to the subscription form.
Современный сервис email-рассылок
To Connect WooCommerce, WordPress with Klick-Tipp please use new "WordPress E-Mail-Marketing-Integration" plugin. Also on WordPress.org