[Arch Linux] Evolution

One of the great things about Arch Linux is I've been trying out a lot of applications to see if there are any that work better than the ones you get with an Ubuntu/Mint based distro. The latest has been Evolution. I like the program a lot, especially it's amazing desktop integration and the fact that many of the functions that I need to use addons for in Thunderbird are part of the program by default. I'm very close to making the switch, however, there are a few things that I need to know if they can be ironed out before I do.
1.) Everything I read on Evolution seems to indicate that RSS feeds can be read via the program like Thunderbird, but I can't find anyway to add them. Anyone care to shed some light on this?
2.) I use a Gmail account, and notice that the "Archive" button in the email client is grayed out and unusable. Anyone know why, and how to restore it's functionality?
3.) I use PGP keys to sign/encrypt mail. When I send a test email to [email protected] on Thunderbird, it successfully decrypts my mail and verifies the signature. However, sending the the same address in Evolution, edward is not able to verify my signature. I'm wondering why this difference occurs
Thanks in advance!