Well, duh. It's very rare for two people's requirements to be exactly the same, so of course the existing modules don't all do exactly what you wish they did. Your definition of "reliable" seems to be "does precisely what I want."

This is the part where you're getting people mad at you. If you run around shouting that people's code is "unreliable" rather than simply not covering some functionality you want (Source filters in eval? Give me a break!), you are certain to annoy them and make them less likely to help you. When you add injury to insult by not offering to help improve what you say is lacking in their modules, what do you expect them to do? Thank you and beg for more of your great wisdom?

CPAN comes with a 100% money back guarantee. Feel free to cash in, or to fork some modules, or to help people fix modules, or whatever it is that you want to do. Meanwhile, the horribly broken e-mail modules that you're complaining about will go back to running most of the Internet's mail.