Federation Commander

Hi all:

I am looking at playing some PBEM FC. However, I would like to do it one on one without a moderator. To do this I have located a dice server that mails results that can be verified.

My problem is simultaneous moves. Is there a PBEM server or mailing list that we can send our moves to, which then holds the info, and when it gets both player's moves it then sends both to each player?

Thanks