IIRC, the subject line from the dicey email tells you how many units of each type it is rolling for. eg. “Attacker rolling for 3 inf 4 arm” then the number string is in that order. eg. “2 1 3 5 6 2 4” would be 1 inf and 1 arm hit.
TripleA does allow bidding, but as of yet does not allow unspent bid amounts to be rolled into starting cash for one of the axis powers (you have to spend the entire bid amount on units to place prior to R1). We hope to fix that. In my opinion, TripleA is the best option for PBEM, but is missing some handy features to make it even better. Give us a bit more time and we’ll hopefully have something that works even better for PBEM than the current TripleA does. Unfortunately, since TripleA is a game engine, all players must use TripleA (ie. one cannot use TripleA, one ABattlemap, and one a physical board, for example). Some players are hesitant to use TripleA for various reasons including, but not limited to; their computer is too old, TripleA doesn’t have the features they need (ie. carry-over bid amounts, or edit map features, or turn summary unit listings, etc.), or some just prefer using a physical board.