Swiftmailer, free feature-rich PHP mailer
Support for authenticating users using both OAuth1.0a and OAuth2 in Symfony2.
The SwiftMailer integration for the Yii framework
Manage mailboxes, filter/get/delete emails in PHP (supports IMAP/POP3/NNTP)
Object-oriented IMAP for PHP
PHP logging class that can be extended via closures. Includes several pre-built handlers including file, mail, syslog, HTTP post, and MongoDB.
Provides generalized functionality to compose and send both text and MIME-compliant multipart e-mail messages
Abstract mail component for external APIs and Services, including PostmarkApp and Mail Gun
The Illuminate Mail package.
MailPanel is extension for Nette Framework which captures sent e-mails in development mode and shows them from debugger bar.
Fully Tested Mailparse Extension Wrapper for PHP 5.4+
The component allows you construct and/or parse Mail messages conforming to the mail standard. It has support for attachments, multipart messages and HTML mail. It also interfaces with SMTP to send mail or IMAP, POP3 or mbox to retrieve e-mail.
Manage messages within the backend.
This bundle allow you to manage some HTML email templates stored in your database. Templates are written with Twig and use I18N.
Mail tools for Swift_Mailer.
Inline the CSS of your HTML emails using Laravel
Bounce Mail Handler
Laravel package for sending mail via the Mailgun API
Provides a simple, chainable wrapper for creating and sending emails using the PHP mail() function.
Mailparse extension wrapper for PHP 5.3+
Provide configurable Mail Transport Factories for ZF2
Module to to ease the use of sending e-mail messages in Zend Framework 2
Symfony Mandrill Bundle
Integration of various email service providers in the Zend Framework Zend\Mail