What the issue means
A missing SPF record means your domain does not publish which mail servers are allowed to send email for it.
Security fix guide
How to Fix a Missing SPF Record
A missing SPF record means your domain does not publish which mail servers are allowed to send email for it.
Run Full Website Security ScanWhy it matters
SPF helps receiving servers evaluate whether mail from your domain came from an authorized source.
How to check it
Query your root domain TXT records for a value beginning with v=spf1.
How to fix it
Publish an SPF record listing your legitimate email providers and keep DNS lookup limits below 10.
Configuration examples
Nginx
DNS record, not an Nginx setting.Apache
DNS record, not an Apache setting.Cloudflare
Add a TXT record on the root domain, for example v=spf1 include:_spf.google.com ~all.