Symfony Swiftmailer Bundle
The security system is one of the most powerful parts of Symfony and can largely be controlled via its configuration.
Symfony Monolog Bundle
The FrameworkBundle defines the main framework configuration, from sessions and translations to forms, validation, routing and more.
Put the awesome Faker library into the Symfony2 DIC and populate your database with fake data.
[UNMAINTAINED] Symfony2 mailchimp bundle
Shows you caching information around ESI requests for debugging purposes.
Prints some nice würst to your shell
Provides a Zend Lucene Search integration for your Symfony2 project.