Play by Email, amongst other things

[MinigunFiend]

It's not a very common request these days, but does anyone know of any really good strategy games with play-by-email functionality?

I've been looking for a little while after I noticed that Crimson Fields (an open source Battle Isle-style game which I installed on my SUSE Linux laptop) has the option.

On a different note, I am a great fan of Racer, the free car simulation, but are there any more free/abandoned racing games with internet play?
The smaller the download the better.

Thanks for any replies in advance.

[Mighty Midget]

The Steel Panthers series is a fairly good PBEM strategy game. The latest versions (remakes for Windows) are also free. You can get these at the camo workshop.

[Eagle of Fire]

Don't Xcom 2000 support that option?

Stars! also can be played by email.

[gregor]

Space Empires III
I am not sure but i think Space empires 4 also have this option.