After a mishap with my iPhone yesterday, I had to re-setup the whole blasted thing and that included my mobile email. Anyhoo, I keep forgetting how to do these things so I guess I’ll just put it here.
1. Go to Settings.
2. Go to Mail, Contacts, Calendars.
3. Add Account.
4. Input the necessary information. These come (email address, login id, initial password) with the papers from Softbank.
5. Hit done.