The software, spfmilter, is a milter for Sendmail that offers a sender policy framework (SPF) for enhanced email security, ensuring emails are not forged by unauthorized senders. It provides a user-friendly solution with easy integration to safeguard systems against email fraud.
The basic idea behind SPF is to create a definition of hosts that are allowed to send mail, claiming to be from a particular site. If the check fails, the mail is rejected. Setting up the permitted-senders definition is easy - you simply fill out a form on the SPF Wizard and put the resulting string into your DNS records.
SPFmilter checks the mail you receive against other sites' SPF records, thereby implementing the second half of SPF. This feature is particularly remarkable because it helps ensure a secure and spam-free email experience.
The recent release of SPFmilter includes some essential improvements, such as the enhancement of the Redhat rcscripts and the ability to handle unknown-family connections appearing on some operating systems, including Solaris.
To sum it up, SPFmilter provides a valuable piece of software for those who need to protect their email accounts from spammers. It's free, easy to set up, and offers a unique solution that complements the sender-side SPF check.
Version 0.97: N/A