MailDeliveryTool can manipulate the delivery and output of email. It can specify the sender of emails depending on the recipient. This is useful for people who work for a number of organisations with differing domain names or simply for those who mix their personal and work email from the same computer.
MailDeliveryTool allows for users to specify their target SMTP server for various locations where they work or live. Software Developers are also able to target MailDeliveryTool as their SMTP server and by pausing MailDeliveryTool's outbound queue, watch the mails that the developed software is sending.