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SPF, DKIM and DMARC – how to prevent your emails from getting into spam?

SPF, DKIM and DMARC are three technologies that help to prevent your emails from getting into spam.

All three are DNS records that are added to the name servers.

  • SPF is the list of servers, that are allowed to send emails using your domain name.
  • DKIM adds a digital signature to the outgoing message, that allows the recipient to check if sender was indeed authorized to send email using particular domain.
  • DMARC verifies, that SPF and/or DKIM are in use and allows to order reports on frauds and emails that are not legitimate/compliant with the rules.

The above records can be activated via My Zone by choosing Web-hosting on the server overview page on the left, then Email and DKIM / SPF / DMARC.

By clicking on the Activate button all three records can be activated and domains credibility can be raised. Setup takes about 15 minutes.


The prerequisite of activating this records, is that all the users send their emails via our webmail or via smtp.zone.ee outgoing server.

If in addition to Zone server your using other service provider’s services, the request an advised IP address for SPF or “include” and change SPF record accordingly. When allowing DKIM, take into account that it only applies to the emails sent via Zone servers.

Definitely read our blog post about those three technologies:



Updated on 12. Mar 2021

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