If you cannot receive or send email with a Gmail account set up on your iPhone or iPod touch, you may experience the following errors:

When checking for new mail, this error appears: "Cannot Get Mail. The connection to the server ‘imap.gmail.com’ failed."
When trying to send mail, this error appears: "Cannot Send Mail. The connection to the server ‘smtp.gmail.com’ failed."
If the account is removed and added again to the device, this error appears: "Could not connect using SSL. Would you like to try setting up the account without SSL?" Saying yes to this message repeatedly will result in a message saying "Cannot Get Mail. The connection to the server ‘imap.gmail.com’ failed."

Related posts:

1. iPhone and iPod touch: Understanding Gmail Archive
2. iPhone and iPod touch: Using a POP account with multiple devices
3. iPhone and iPod touch: Mail may unexpectedly quit if webmail account settings are synced
4. iPhone and iPod touch: If IMAP Mail folders are not visible
5. MobileMe: Features that work with one account at a time on iPhone, iPad, or iPod touch