Hey,

Start with these suggestions:

1. Verify your internet connection is working. If it's not, there are four things you can do to fix it.

2. Make sure you're using the correct email server settings. ...

3. Confirm your password is working. ...

4. Confirm you don't have a security conflict caused by your firewall or antivirus software.

For further information you can visit our website: 

SBCglobal Email Support | SBCglobal Email