I haven't had any issues with Gedit (Ubuntu 10) and Pluma (LM16+).
I use Thunderbird for email.
It seems to work like it does in Windows.
Since I find that all email programs are stupidly complicated, I hate it on both platforms.
I get my friend to write Linux scripts when I need something tricky done.
He's used Linux Distros for ~14 years, so he can write something in a few minutes (it would take me days).