Q: TOP Free email apps for mac pro ??

The one it came with: Mail.app

Good place to look for software:

http://www.macupdate.com/

And for free alternatives to some popular software packages:

http://alternativeto.net/

(If you see an ad there for something called MacKeeper, ignore it and on no account install it - it is malware.)

And there is of course also the App Store!

You start by downloading them, then follow the instructions.

the free Mail.app that came with Mac OS X is quite configurable. Most Users are not searching for another email Reader.

¿what offends you about Mac Mail.app? perhaps there is a way to configure it to better meet your needs.

One or more links have been posted in this thread to the "macupdate" website. Do not follow the links, and never download anything from that site. It intentionally distributes OS X malware by packaging some free applications in an unnecessary and malicious "installer."

All software should be downloaded directly from the developer's website or from the App Store. Don't trust any site such as "macupdate" that aggregates download links.