Email authentication is what differentiates legitimate emails from any spam that would use your domain. A suitable configuration proves to your recipients that your emails are legitimate and helps to block emails that are not. Good authentication also establishes your reputation as a sender, helps increase your delivery rates, reduces the risk of having your emails filtered or reported as spam, and improves your recipients' trust in your electronic communications.
Inversely, not authenticating your emails exposes you to risks. If a receiving server cannot prove that a server is entitled to send emails on your behalf, then the following consequences might arise:
- It will be more difficult to gain and maintain a good sender reputation. Your reputation can be easily damaged by a spam campaign that would aim at the reputation of your domain.
- Your recipients could be informed that the emails “do not seem to come from your domains” or that the source of the email cannot be confirmed.
- Your domains could easily be used for phishing campaigns since it is impossible to distinguish legitimate from illegitimate emails.
Authentication protocols nowadays are the standard in emailing, and a message sent without authentication is considered suspicious by analytic tools.
When configuring your account, if you choose the domain delegation, Dialog Insight takes care of authenticating your emails with DKIM, SPF and DMARC.