Starting Aquarium's correspondence play module
You get a quick overview of all your games in a single list, even if you have games in progress on different servers.
The new Aquarium correspondence play module
When you make your moves, many of the possible sources of error are eliminated. Games can be saved directly in an Aquarium database where you can check opening statistics, look up the position in endgame tablebases or use Aquarium's analysis tools. No matter how extensive your notes and analysis are, Aquarium automatically ensures that only the move you make is transferred to your opponent and your notes and analysis will stay private.
For an overview of this new module, see Correspondence Chess with Aquarium 2010.