smtpfilter is a real-time SMTP session filter that supports seamless session passing.
SMTPFilter is a powerful and efficient filter for SMTP sessions that allows for real-time transparent passage, except for the DATA command. This command is intercepted to scan data for spam and viruses with the scanner of your choice. This software is ideal for those whose work involves managing email servers and ensuring the security and cleanliness of data transferred through them.
If you're reading this source, please note that it was meant to be an internal release and contains a few comments at the top of the file that wouldn't be present in the final version. This is likely because the software was released in a hurry due to the need for a particular feature. Before engaging with this code for the first time, it's advisable to contact the author ([email protected]) to request a cleaner version.
The descriptive comments that explain the program's function have moved from the top of the file and are now halfway down. This issue will be resolved in the next maintenance release. However, the current version works incredibly well, as evidenced by its use at the University of Texas Pan American by over 2000 staff and 15,000 students. While not all users are active emailers, an estimated 2000-3000 use the software heavily. Additionally, it's worth mentioning that AOL, MSN, and Yahoo are the most commonly used email providers on campus.
Overall, SMTPFilter is a reliable and effective filtering tool for SMTP sessions that can greatly enhance the security and quality of your email server.
Version 0.1: N/A