Business email

SPF, DKIM and DMARC.

The three records that decide whether your mail arrives and whether anyone can impersonate you.

Guides

DKIM lets a receiving server verify a message really came from you. How to publish it and why keys stop matching.

A strict policy plus an unauthorised sender means your own mail is being rejected on your own instructions.

Without DMARC, receiving servers have no instruction about forged mail from your domain. How to publish it safely.

SPF allows ten DNS lookups. Past that the whole record fails silently while still looking correct.

Nothing tells receiving servers which systems may send mail for your domain. How to publish one that works.

We watch the records that decide whether your email arrives and whether it can be impersonated, and report in plain language.

If your domain sends email, yes. Without it anyone can send mail claiming to be you, and receiving servers have no instruction…

Check yours

See where your domain stands.

The free check covers all of this at once, in about ten seconds. No account, no card.