RapidoSMTP allows you to turn on the Postfix SMTP server built into Mac OS X, which will allow you to send mail from from any applications like Apple Mail or Microsoft Entourage without using the SMTP server of your internet provider.
For example, it's very useful if you have a laptop and if you are tired to change settings when you move.
* Updated user interface
* Compatible with Mac OS X 10.4.9 Tiger
* Better reliability
* Bugs fixed
Operating System Support: Mac OS X 10.4.9 or later.