Customize Your Settings for Sending E-mail from Your iPhone
You can customize the mail you send and receive on your iPhone in lots of ways. Here, you explore settings for sending e-mail. Start by tapping Settings on the Home screen.
To hear an alert when you successfully send a message: Tap the Sounds option on the main Settings screen, and then turn on the Sent Mail setting. You choose what that alert sounds like, from a Suspense sound to Swoosh (the default).
If you want to change other settings, tap the Settings button in the upper-left corner of the screen. If you’re finished setting settings, press the Home button on the front of your iPhone.
If you want to continue using settings, you tap whichever button appears in the upper-left corner of the screen — it might be named Settings, Mail, Accounts, or something else. The point is that the upper-left button always returns you to the preceding screen so that you can change other settings.
The same concept applies to pressing the Home button on the front of your iPhone when you’re finished setting a setting. That action always saves the change you just made and returns you to the Home screen.
To add a signature line, phrase, or block of text to every e-mail message you send: Tap Settings→Mail, Contacts, Calendars→Signature. (You may need to scroll down to see the Signature option.) The default signature is Sent from my iPhone.
You can add text before or after it, or delete it and type something else, keeping your signature no longer than four lines max if you want to follow the unwritten rules of netiquette. Your signature is now affixed to the end of all your outgoing e-mail.
To have your iPhone send you a copy of every message you send: Tap Settings→Mail, Contacts, Calendars, and then turn on the Always Bcc Myself setting.
To add an indentation when you forward or reply to a message: Tap Increase Quote Level and tap or slide the switch from Off to On.
To set the default e-mail account for sending e-mail from outside the Mail app: On the Home screen, tap Settings→Mail, Contact, Calendars→Default Account. Tap the account you want to use as the default.
For example, when you want to e-mail a picture directly from the Photos app, this designated default e-mail account is used. Note that this setting applies only if you have more than one e-mail account on your iPhone.