my ipad will not reset when I hold down sleep button

To reset the iPad: Press and hold the Home and Sleep buttons simultaneously ignoring the red slider should one appear until the Apple logo appears. Let go of the buttons and let the device restart. See if that fixes your problem.

iOS: Unable to send or receive email

http://support.apple.com/kb/TS3899

Can’t Send Emails on iPad – Troubleshooting Steps

http://ipadhelp.com/ipad-help/ipad-cant-send-emails-troubleshooting-steps/

Setting up and troubleshooting Mail

http://www.apple.com/support/ipad/assistant/mail/

Server does not allow relaying email error, fix

http://appletoolbox.com/2012/01/server-does-not-allow-relaying-email-error-fix/

Why Does My iPad Say "Cannot Connect to Server"?

http://www.ehow.co.uk/info_8693415_ipad-say-cannot-connect-server.html

iOS: 'Mailbox Locked', account is in use on another device, or prompt to re-enter POP3 password

http://support.apple.com/kb/ts2621

iPad Mail

http://www.apple.com/support/ipad/mail/

Configuration problems with IMAP e-mail on iOS with a non-standard SSL port.

http://colinrobbins.me/2013/02/09/configuration-problems-with-imap-e-mail-on-ios -with-a-non-standard-ssl-port/

Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)

Or this - Delete the account in Mail and then set it up again. Settings->Mail, Contacts, Calendars -> Accounts Tap on the Account, then on the red button that says Remove Account.

 Cheers, Tom 😉