Sudden Trouble sending and receiving mail via ipad mail app

Sudden Trouble sending and receiving mail via ipad mail app

I've been successfully using the ipad mail app to send and receive my zohomail along with other accounts. Yesterday, the zohomail stopped working, while all of the other accounts are fine. I can access my zohoemail via a web browser, but I am unable to download emails via apple's mail app. I have tried restarting the ipad, re-entering the settings for the email account, and more. Any suggestions here? I am using ipad 4th gen, system 7.1.1