SPF records are used to help prevent email spoofing. They help to ensure that only authorized servers can send emails on behalf of your domain. SPF records can help to improve your email deliverability.

How to Configure SPF for SonicWall Email Security

• Sign in to your DNS administration interface.
• Select DNS Template under Tools & Settings
• You must change the DNS TXT record for SPF.
• For SonicWall Email Security, an SPF TXT record will have the following syntax:

Depending on the area, SonicWall Email Security uses two different approaches.
Europe Region.
Mydomain.com TXT   v=spf1 include:_spf.snwlhostedeu.com ~all
NAOM Region:
mydomain.com TXT v=spf1 include:_spf.snwlhosted.com ~all

• Add this record in the DNS records section for the appropriate domain for your area.

Worth noting: To activate SPF for outgoing emails using SonicWall Email Security if your domain previously lacked an SPF record, all you need to do is publish the aforementioned record. If your DNS already contains an SPF record, you must update it to include SonicWall Email Security as shown below:

Previous SPF record:  v=spf1 mx -all

Modified SPF record:  v=spf1 mx include:_spf.snwlhosted.com ~all

• Save adjustments.
• Allow your DNS to process the adjustments for 72 hours.

With Skysnag, you can easily manage SonicWall Email Security’s SPF records without having to go to your DNS. This allows SonicWall Email Security’s SPF record to propagate instantly, and autonomously always pass SPF alignment.

Sign up for a free trial today to see how it works for your domain.

For more information on setting up SonicWall Email Security’s SPF, you can refer to their reference documentation.

You can use Skysnag’s free SPF Checker to check the health of your SPF record here