Diafaan SMS Server 1.5.4 has improved support for Microsoft Exchange
Server. It is now possible to forward received SMS messages to Exchange
users.

New features in the E-mail Connector:

• The reply to e-mail option can now be used in combination with the
  extract e-mail address from SMS option to determine the destination of
  the received SMS message.
• Basic Authentication support for the SMTP Client.
• TLS encryption support for the SMTP Client.