Why can't I access my email on samsung galaxy tab 3?

[AC Question]

I am using the email app. I can get emails on the PC but not on my tablet any more. I've also noticed all programs working slower and the battery draining extremely fast.

 

[B. Diddy]

Welcome to Android Central! Try wiping the cache partition: https://support.t-mobile.com/docs/DOC-16226

For the email issues, go to the App Manager, select Email, and Clear Cache. If that doesn't help, then open the Email app, tap Menu>Settings, and remove your email accounts. Then add them back again.