Make sure your email account is set up correctly under settings-mail, contacts, calendars. You may have to delete and reinstall the account. Some POP accounts don't send good unless by WIFI so I use my Yahoo account with no issues.
Ok .... to the first person who can help me delete my outbox I will reward them with a 5.00 off coupon for ZAGG.com I will PM the code. Every time I open my mail it says I have 3 unsent messages. How do I delete these ? That is my question.