As we do not offer any email services, we in turn do not offer any SMTP relay servers on our network. Generally relaying of email through your email provider is not allowed unless you are connected to the email provider's network.
We suggest you make contact with your email provider to request assistance in setting up SMTP Authentication so that you may continue to relay your email through your email provider. If this is not possible, you could look at using a 3rd party email relay service such as SMTP2GO who offers some free basic services.