Even though there is no Resend button on the iPhone, there is a workaround. Open the Sent folder in Mail and select the message you want to resend. Then tap the folder button on the bottom taskbar (second from the left) and then the Drafts folder. This places the message in the Drafts folder. From there, you can open it up, enter an address, and send it again.
If you get an attachment with an e-mail, it will appear at the bottom of the message, with the file-type icon, title of the attachment, and file size. Tapping on it will open it full-screen, and you can zoom in and out and scroll around on it. Note that you can only open and view Word, Excel, PDF, and graphics files-you cannot edit them.
You can set up a free Yahoo mail account and get real-time e-mail delivery, also known as "push e-mail". This means that when you get a new message, it will show up on your iPhone as it arrives. There is nothing you have to do to set up this feature-it is done automatically. You'll know that you have new mail by glancing at the Mail icon on your Home screen to see if there is a circled number in the upper-right corner, indicating how many new messages you have waiting. You'll also hear the "You've got mail" sound.
IMAP e-mail accounts (such as Gmail and Hotmail) keep all of your e-mail on online servers, which means that you can't delete messages or read them unless you are online. Fortunately, you can set up your iPhone/iPod touch to copy your IMAP messages onto the device so that you can work with them offline. Here's how you do it:
Phone numbers, e-mail and Web addresses, and street addresses that appear in the body of an e-mail or text message are linked to the appropriate application on the iPhone. This allows you to…
A quick and fun way to delete e-mail messages (in the list view of a folder) is to simply swipe your finger across it (in either direction). A red Delete button will appear to the right of the message to confirm the deletion. If you change your mind, you can tap anywhere outside the button to cancel the action. This finger swiping action lets you delete items in a number of the built-in applications.
An alternate method for deleting messages is to tap the Edit button in the top right corner of the screen, tap the red circle to the left of the message that you want to delete, and tap Delete.
Swipe your finger across an e-mail to quickly bring up the Delete button.
You can further reduce the drain on the battery and reduce e-mail overload by limiting the amount of e-mail you download to your iPhone. Immediately below the Auto-Check setting on the Home >Settings >Mail screen is the Show setting. You can set this to display a specific number of the most recent messages: as low as 25 and as many as 200. If you want to see additional messages, tap on the Download More button in the Mail program.
If you are not using a Microsoft Exchange push e-mail service, you can configure your iPhone to “Auto-Check” for new e-mail messages every 15, 30, or 60 minutes, or Manual. To set Auto-Check:
NOTE: The more frequently the iPhone auto-checks for e-mail, the more battery power you use. Set the time higher or set it to Manual to conserve battery power.
Double-tapping the Home button on the iPhone (from within any application) will open the Phone application. On the iPod touch, it will open a pop-up control for music playback. When the iPhone and iPod touch are locked, double-tapping the Home button will bring up the music playback control; double-tapping it a second time will close the control.
To erase all the content on your iPhone or iPod touch, including e-mail, Contacts, media content, and Settings, go to:
After you confirm the erase with two taps, your device will delete everything (which takes a few moments) and then reset itself.