On 2.2 there was an option to sync email by number of days (3, 7, 14, 30 , all) or by number of emails. Plus an option to download the entire email, just the head, or a certain size in Kbs.
I cant find these options in Ice Cream Sandwich, my email is only syncing back to 7th December (with an ineffective "load more messages" option at the bottom of the screen). Also, the whole email is being downloaded (which is fine, as I'm on an unlimited data plan).
Go into email
select menu
select settings
select 'sync, send and recieve'
From here you can select how many days worth of enails to download (from one day to all), email size download, format, etc etc.
Must be my ROM,those options are there.
Settings takes me to:
"General" or "myaddress@blueyonder.co.uk"
various options to vary font size, reply to all , notifications, show pictures, etc but not the old ones that 2.2 had.