cmail is a simple mail counting tool written in perl. It reads in a config file
and returns which mailfiles contain mail, how much mail, and how many new
messages. Example of output -
            Personal mail    1 message
                 JLC mail   20 messages (2 new)
                EXPI mail    2 messages
                  DWC RPG    1 message

This may be useful if you split your mail into multiple files using something
like procmail. I'm not sure if the new/old mail determination works with
anything other than mutt.
Latest versions can also be found at http://www.eboai.org/~chip/scripts.html

--
Chip Marshall <chip@eboai.org>
http://www.eboai.org/~chip/                     InterNIC handle - CLM21
PGP key available on my web page              On IRC via EFnet as Magus
PGP Key fingerprint =  6B 35 3B 72 AC 37 90 04  E5 79 EE 71 18 95 4A 84