Free SPF Record Checker
Check your domain's SPF record syntax instantly. Validate the SPF record, see every authorized sender by name, and find misconfigurations that allow email spoofing.
Frequently Asked Questions
What is an SPF record?
An SPF (Sender Policy Framework) record is a DNS TXT record that lists mail servers authorized to send email on behalf of your domain. Receiving servers check this list to detect spoofed senders.
What does "-all" mean in my SPF record?
"-all" is a hard fail directive that tells receiving servers to reject email from any server not listed in the SPF record. It provides the strongest protection against spoofing.
How many DNS lookups can my SPF record have?
SPF records are limited to 10 DNS lookups during evaluation. Exceeding this limit causes a PermError, which can cause legitimate email to be rejected.
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