I received an email stating my refund should arrive today in my account but the irs website says it hasn't been sent. What does that mean?

You probably received a notification from TurboTax that your return has been “Accepted” it means that the IRS has accepted it for processing. It does not mean that it has been processed yet, just that is complete and accurate for them to start working on processing your return. You might also receive an email from TurboTax that your refund is “on its way”. This is more than likely an automated marketing email. 

Always go by the actual date provided on the IRS website as we have no control over your return once the IRS has accepted it for processing. The IRS website have the most accurate and up to date information. It gets updated once a day. If you have any inquiries regarding any refund delay, you should contact the IRS or your state Department of revenue directly. 
 

You can monitor your refund status by clicking on the link below 

To track your Federal Refund 

Where's my Refund

To track your State Refund 

How do I track my state's refund?