Your sending domain, checked before every send.
SPF, DKIM and DMARC read live from DNS, plus MX, reverse DNS and public spam blocklists — with the exact record to fix anything that is wrong.
Summer offer · sending
● LiveNSPlain answers
to DNS questions.
Most deliverability problems start in DNS. Devlo reads it for you and says what to change, in plain words.
SPF
Checks which servers may send for your domain, and spots "+all", private addresses and broken words.
DKIM
Finds your signing key under the common names and tells you if it is missing, revoked or damaged.
DMARC
Checks your policy is valid and suggests the next step once SPF and DKIM pass.
MX and reverse DNS
Makes sure replies have somewhere to land and your sending server has a proper name.
Blocklists
Your sending server and domain are looked up on 9 public spam blocklists, with a removal link if one lists you.
Records to copy
Where a record is wrong, Devlo shows the corrected one with a copy button, ready to paste into your DNS.
Read live, explained simply.
Open Domain Health in Settings and every record is read straight from DNS, with a green, amber or red status and the reason in plain words.
Read live from DNS Check again any time Suggested fixes to copy
Summer offer · sending
● LiveNSBroken records stop the send.
If SPF, DKIM or DMARC is broken, a campaign waits before it starts and shows what to fix — so a whole list never goes to spam by accident. You can still choose to send anyway.
Stops on broken SPF, DKIM or DMARC Blocklists warn, never block Send anyway if you decide to
Good to know.
Wherever your domain’s DNS is managed — Cloudflare, your registrar, or cPanel’s Zone Editor. Devlo gives you the exact text to paste.
You see which list and a link to its removal page. Fix the cause first (a hacked mailbox, a bought list), then ask for removal.
No — it warns you. Only broken SPF, DKIM or DMARC holds a campaign, and you can still send anyway.
Better together.
Ready togrow smarter?
Bring your list, we'll bring the deliverability. Set up takes an afternoon, and the Free plan stays free.