SPF Checker
Find the SPF TXT record that controls which senders can mail for a domain.
Finds the v=spf1 TXT record used for sender authorization.
What SPF protects
SPF lists the servers and services allowed to send mail for a domain. It helps receiving mail systems detect spoofed senders.
A clean SPF record is especially important for transactional email, newsletters, and services that send account verification messages.
Related guides
How to Fix SPF Fail
A practical checklist for fixing SPF failures without breaking legitimate email senders.
SPF Record Examples for Google Workspace, Microsoft 365, SendGrid, Mailgun, Zoho, and Amazon SES
Copy practical SPF examples and learn how to combine common email providers into one safe TXT record.
FAQ
How many SPF records should a domain have?
A domain should publish one SPF TXT record. Multiple SPF records can cause a permanent error.
Why does SPF fail?
Common causes include missing include mechanisms, a changed sending service, or the message being forwarded.