What email client do you use?

[cristiu]

I use Outlook Express, but I like Thunderbird too...

[OldWelshGuy]

I use Outlook, but not express, I use outlook as a personal information manager also keeping everything in there appointments the lot.

[novocaine]

Thunderbird all day long

[Eric]

Yup! Thunder bird here also.

[Alexandru Ungur]

I use mutt, sometimes when I want to run a GUI client (not too often though I use either Evolution or Balsa).

[Darksat]

I like the one built into Opera.