SPF checker & generator
Check an existing SPF record, or build a new one to publish - the list of servers allowed to send email as you.
Check your record
Enter a domain to see its SPF record and the senders it authorises.
Build a record
Tell us who sends your mail and we’ll build a valid SPF record. Watch the lookup count – over 10 and SPF can fail.
Publish as a TXT record at your domain root ·
What this tells you
Your SPF record lists who’s allowed to send email as your domain. The catch: SPF is only allowed 10 DNS lookups, and every cloud service you add eats into that budget – exceed it and SPF silently fails. This tool shows your record; a full check counts your lookups and flags problems, and hosted SPF keeps you safely under the limit automatically.
What is SPF? →
The basics, in plain English.
Hosted SPF →
Never trip the 10-lookup limit again.
DMARC checker →
Check the policy that uses SPF.