Expanded class hierarchy of DefaultMailSystem in Drupal 7
- class \DefaultMailSystem implements MailSystemInterface
- class \AmazonSesSystem
- class \AmazonSesSystem
- class \DevelMailLog
- class \HelperDebugMailLog
- class \Messaging_HTML_MailSystem
- class \MigrateMailIgnore
- class \oaTestingMailSystem implements MailSystemInterface
- class \SimpleMailMailSystem
- class \TestingMailSystem implements MailSystemInterface
- class \UbercartMailSystem