thanks for the help.
i managed to find a way to fix the problem. so fyi for anyone who encounters the same problem.
first for into applications and clear the data in email or if you have titanium backup wipe the email application's data.
then go direct into settings, accounts and sync, then add your email account from there using same setup process as you would normally. once this is complete you should be able to then open the email application without anymore force close issues etc...
hope this help someone in future!
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