What is Error 553: Unable to Verify Address

When you receive a 553 Error or a message saying “unable to verify address”, you need to set up SMTP Authentication in your email client.

Refer to the following articles to learn how to set up SMTP Authentication in your email client:

For further assistance, please open a support ticket from your HostPapa Dashboard. Follow this link to learn how.

Related Articles

Get online with our affordable web hosting

Get online with our affordable web hosting

Learn more now
HostPapa Mustache