Test Mailer enables you to test and debug the communication between your computer and a mail server. The program includes a SMTP server for sending the test message and offers advanced options to configure the mail sending scenario (authentication, headers, attachments, HTML body etc.). A detailed log is displayed as the communication takes place, which can also be saved as RTF file for later review.

The license of this software is Free Trial Software, the price is $9.95, you can free download and get a free trial.