[Dovecot] Newbie about Mbox or Maildir

Hi,

Thanks in advance. I am not sure if my system is setup to use 'mbox' or 'maildir'. How do I find this out?

I am running an OpenBSD (v3.5) box with an Intel P3 motherboard. I have installed the OpenBSD port of Dovecot (0.99.10) and have manually started dovecot and configured the ssl certificates as per the documentation. As far as I can tell there is no problems but I am confused about 'mbox' and 'maildir'

Any assistance is appreciated. Thankyou

NS