There is a FREE software-->Opera. They allow anybody to be tester. Almost every weekend they send new release of the software.-->http://my.opera.com/desktopteam/blog/
They have bug report wizard: https://bugs.opera.com/wizard.
If I send a bug report about a page, in the next weekly release they resolve it.
But I payed for Pocomail, and I have character coding problem for 1 year (not 1 week! than in Opera), I was promised to resolve it in the new version.
Sorry for my post, but today I corrected a forwarded mail more than 1 hour!