SPF | KC's Blog https://www.kjctech.net Tue, 24 Jan 2023 18:20:52 +0000 en-US hourly 1 https://i0.wp.com/www.kjctech.net/wp-content/uploads/2016/12/cropped-KC-Logo.png?fit=32%2C32&ssl=1 SPF | KC's Blog https://www.kjctech.net 32 32 24634607 How To Secure Domains that Do Not Send Emails https://www.kjctech.net/how-to-secure-domains-that-do-not-send-emails/?utm_source=rss&utm_medium=rss&utm_campaign=how-to-secure-domains-that-do-not-send-emails https://www.kjctech.net/how-to-secure-domains-that-do-not-send-emails/#respond Tue, 14 Jun 2022 05:45:35 +0000 https://www.kjctech.net/?p=4754 If you have domains that do not send emails, you still need to lock them down so no spammers can spoof these domains to send emails. All you need is to add the following two DNS records to your domain’s DNS. First, a block-all SPF txt record: v=spf1 -all And a DMARC policy that rejects all email that fails SPF. […]

The post How To Secure Domains that Do Not Send Emails first appeared on KC's Blog.]]> If you have domains that do not send emails, you still need to lock them down so no spammers can spoof these domains to send emails. All you need is to add the following two DNS records to your domain’s DNS.

First, a block-all SPF txt record:

v=spf1 -all

And a DMARC policy that rejects all email that fails SPF.

v=DMARC1; p=reject; adkim=s; aspf=s;

And that’s it, quite simple steps that are enough to stop any spam emails sent from the domain.

Thanks to Alex Blackie for the excellent tip.

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