[Dovecot] Courier-imap + dovecot simultaneously?

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,

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Best regards,

Charles