[D] Enumerations
[D] Parser
[F] Attachment.php
[F] AttachmentCollection.php
[F] Email.php
[F] EmailCollection.php
[F] Header.php
[F] HeaderCollection.php
[F] Message.php
[F] Parameter.php
[F] ParameterCollection.php
[F] Part.php
[F] PartCollection.php