What is SPF?

Learn what “SPF” means in plain words.

SPF

Sender Policy Framework

A DNS entry that lists the servers allowed to send email on behalf of your domain. It helps keep your emails out of spam.

The recipient’s mailbox checks whether an email from your domain came from a server on the list. If not, the email may land in spam or be rejected.

When you add a new tool that sends email from your domain, such as a website form. Its server is added to the existing SPF entry.

Category: Security

TXT recordA DNS entry that holds any text. It is mainly used to prove that a domain belongs to you and to protect your email.
DKIMA digital signature on your emails. The recipient’s mailbox checks it with a key stored in your domain’s DNS and knows the email really came from your domain.
DMARCA DNS entry that tells recipients’ mailboxes what to do with an email from your domain that fails the SPF or DKIM check: deliver it, move it to spam or reject it.
SpamUnwanted messages. Mailboxes filter them into a separate folder, so your email sending has to be set up properly to keep your emails out of it.
HTTPSA secure way of connecting to a website. Everything you send is encrypted.
SSL certificateProtection for the connection to your website. With it, the address starts with https and anything typed into a form is encrypted.