twisted.mail.mail : API documentation

Class	DomainWithDefaultDict	A simulated dictionary for mapping domain names to domain objects with a default value for non-existing keys.
Interface	IDomain	An interface for email domains.
Interface	IAliasableDomain	An interface for email domains which can be aliased to other domains.
Class	BounceDomain	A domain with no users.
Class	FileMessage	A message receiver which delivers a message to a file.
Class	MailService	An email service.
Class	FileMonitoringService	A service for monitoring changes to files.

twisted.mail.mail module documentation