DNS, domains, no email
Sat, Jan 1, 2022 · 1 minute readwebsecurity
Updated previous note with updates from Cloudflare.
If you have a domain which is not used for email then please add DNS records to prevent it being abused.
. TXT "v=spf1 -all"
. MX . 0
_dmarc. TXT "v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s"
*._domainkey. TXT "v=DKIM1; p="