buscando un poco he visto esto...
Cita: There is no ready-made SMTP support in Titanium SDK. You need to implement yourself with using TCPSocket operations.
Check
http://docs.appcelerator.com/titaniu...ork.Socket.TCP for documentation and example code.
SMTP protocol is easy. There are few commands like; EHLO, MAIL FROM, RCPT TO, AUTH LOGIN, DATA, QUIT. You can find all protocol specification on RFC documentations.
tampoco he encontrado que haya nada de imap o pop3 en appcelerator asi que... ánimo