Gmail - This email is unauthenticated

You are reading this article because you have sent an email to Gmail and they have bounced your mail back with a message similar to the one below.

This error indicates that your domain name DNS settings have some missing settings which Gmail requires.

Prior to 2023, it was possible to send emails to the Gmail system WITHOUT special authentication settings, however, it's now required.

Below you will find some link to the settings you will need.

SPF for Rackspace Mail
DKIM Signing

If you have your email hosted with us and we also control your DNS, then drop an email to and we will be happy to help, otherwise contact the person who manages your DNS and they will be able to help you.

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