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Admax Hosting AB · web hosting in Sweden since 1996Published 31 March 2026
An SPF record tells receiving mail servers which email server your domain is authorised to send email from. Without an SPF record, there is a greater risk that someone could spoof your domain — making it appear as though an email came from your domain when it actually didn't.
To send via our email server, your SPF record should look like this:
v=spf1 a mx a:smtp2.smartemail.se a:smtp3.smartemail.se a:smtp4.smartemail.se mx:mail.smartemail.se -all
Many email providers now enforce SPF strictly and will mark messages as spam if it is not set up correctly.
Free tool
- SPF lookupTest a domain's SPF record, count the DNS lookups, and see the full include chain.
- SPF generatorBuild an SPF record for the services that send email on behalf of your domain.
- DNS lookupView all DNS records for a domain: A, AAAA, CNAME, MX, NS, TXT, SOA and CAA.
- DNS propagationCheck whether a changed DNS record has taken effect at Google, Cloudflare, Quad9 and AdGuard.