Hi there, welcome to Android Forums.
If I understand you correctly, you want to set up an email account on your phone. Please let me know if I have misunderstood.
Go to “Options” then select “Settings.”
Scroll to “Accounts & sync.”
Click on the “Add Account.”
Then search the list for the type of account you want to create. tap the relevant button and follow the onscreen prompts regarding email address, password and username.
If you have tried all that and it still doesn't work, perhaps you could let us have some more information please?
Failing that, we have a whole forum dedicated to the Samsung Galaxy Grand at
Samsung Galaxy Grand - Android Forums but you would need to register on the forums first to view it. it's well worth it though. You can register by clicking the link in my signature below.