[Dovecot] Courier-imap + dovecot simultaneously?

[Charles Marcus]

Hi everyone,

I have a client I've been trying to talk into switching from courier to 
dovecot, but the owner of the company wants me to set up two different 
accounts in Thunderbird (I finally got him switched to that from outlook 
express), one accessing his account through courier, and one through 
dovecot, so he can compare the speed...

Is this even possible? I've never tried it before, so before I spend a 
lot of time, I want to know if I'd be wasting it (my time)...

Thanks,

-- 

Best regards,

Charles