Do I need to set up an SPF or DKIM records?
No — you don't need to manually set up SPF or DKIM records for SendFox. Validating your domain adds email authentication automatically through three CNAME records.
The short answer
- Before you validate a domain: your emails send from mail@sendfoxmail.com, which SendFox's own infrastructure is already authorized to send for — nothing to set up. See why emails are sent from mail@sendfoxmail.com.
- When you validate your domain: the three CNAME entries SendFox gives you are the authentication setup. Two of them (the sf._domainkey and sf2._domainkey records) are your DKIM keys, and the third handles sender alignment — no separate SPF or DKIM TXT records are needed.
How the CNAME records handle it
Instead of asking you to create and maintain TXT records, the CNAMEs delegate authentication to SendFox's sending infrastructure. Mailbox providers checking your DKIM signature follow the CNAME to records that are managed and rotated for you. To set them up, follow how do I validate my domain?
Troubleshooting
My DNS provider's guide says I need an SPF TXT record
- That guidance is for servers that send mail directly from your domain. SendFox sends through its own authenticated infrastructure, so the three CNAME entries are all you add.
My CNAME records won't validate
- See why is my domain validation not working? — propagation delays and host-column quirks are the usual causes.
Frequently Asked Questions
What about DMARC?
SendFox doesn't require a DMARC record. If you choose to publish a DMARC policy for your domain, that's managed in your own DNS — the DKIM alignment from your validated domain is what a DMARC policy checks against.
Do I have to validate my domain at all?
It's optional but recommended — validated domains send from your own address and build your domain's sending reputation. See how do I validate my domain?
Which of the three records are the DKIM ones?
The two Host entries starting with sf._domainkey and sf2._domainkey. They're created for you when you add a domain — just copy them into your DNS settings.