stopped getting emails in 2011

stopped getting emails in 2011

noticed that my zoho mail stopped importing my pop emails since 2011.
I have changed nothine before then.
However, I am still able to send emails.

when I got to mail settings, I see that the password for my pop account is empty. so I entered it

Also the default settings for the smtp outgoing server is smtpout.mail.zoho.com with default port 25.

when I click save, it asks for my outgoing password.

I choose to authenticate and give my zoho log in  but I get an invalid outgoing server error message.

entered my out smtp outgoing server (smptout.secureserver.net) and  log on that works on my other email clients and I get "problem connecting to mail server"

When unclick the SSL connection and enter my outgoing server address (not zoho's), and say to use the same log in as the incoming server, it says updating ...... and then "Account is not Valid"

Yes, I am certain I am providing the right credentials. 

Help!