Joker! is a Perl-based mail user agent for Mac OS, available for free. Although still in Alpha stage, Joker! is open source software, providing basic functionality as a mail user agent. Note that certain features may not yet function.
Written in Perl, The Joker! boasts a range of features that make it a top choice for anyone in need of a dependable mail client. From convenient email management to seamless message synchronization, this software is designed with your needs in mind.
However, it's important to note that The Joker! is still in its Alpha stages, meaning that not all of its features may be functional just yet. Regardless, this up-and-coming mail user agent is definitely worth a try if you're seeking a free and easy-to-use solution for your Mac-based email needs. Give it a go and see how it stacks up against your current client!
Version Pre-Alpha 2.1: N/A