What to do to troubleshoot SBCGlobal not receiving and sending emails?

There are times when people face problems like SBCGlobal not receiving and sending emails. This is not uncommon and can be resolved easily. Check the following to resolve the error: • You have blocked the sender. • Email filters are incorrect. • The recipient has blocked you. • Putting in the wrong credentials. • The ATT server is down. • You have an incorrect email configuration.