Add an SPF record

SPF (Sender Policy Framework) prevents spammers from using an email address on your domain as their sender address, known as email spoofing.

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New one.com Control Panel update

With the rollout of our new Control Panel design, some steps or screenshots in this guide may look different from what you see now. While we work on updates, please check the guide below whenever the instructions don't match your screen:

Navigating the new one.com Control Panel design

How does SPF work?

SPF is an email authentication method that lets receiving mail servers verify whether an email sent from your domain comes from an authorised server. If the sending server is not included in your domain’s SPF record, the receiving system may reject the message or treat it as suspicious.

Unfortunately, not all incoming mail servers check for SPF records. So even though adding an SPF record will help, it cannot prevent all spoofing.

Create an SPF record on your domain

Follow the instructions below to add an SPF record to your domain. Keep in mind that it takes up to 90 minutes before your change is active.

1. Log into your one.com Control Panel and click DNS settings on the Advanced settings tile.
2. Go to DNS records.
3. Under create new record, click TXT.
4. Paste in the following string under Value:

   v=spf1 include:_custspf.one.com ~all

5. Click Create record to save your settings.

Related articles:

What is DNS?

How do I send newsletters using one.com's mail service?