[ Sending-service guides ]

Authenticate email sent through Hellodialog: configuration and verification

Authenticate a Hellodialog newsletter sender without guessing between conflicting published DKIM instructions.

By the EmailAuth research team · 4 min read

[ Key points ]

  • Resolve the conflicting CNAME versus two-TXT DKIM designs with support.
  • Keep mailbox activation separate from domain authentication.
  • Preserve existing enforcement and prove the actual newsletter route.
On this page
  1. Key points
  2. Takeaway
  3. By role
  4. Frequently asked questions
  5. Sources
  6. Glossary
  7. Related guides

[ Takeaway ]

Preserve existing enforcement and prove the actual newsletter route.

[ By role ]

What this means for you

Choose your role for practical next steps.

IT / Mail Admin

Resolve the record conflict

The account-specific DKIM instructions determine what belongs in DNS.

Next steps

  1. Obtain support confirmation.
  2. Check full owner names.
  3. Capture a received-message identity worksheet.

CISO / SecOps

Preserve domain policy control

Newsletter setup is not authority to change enforcement for every sender.

Next steps

  1. Inventory affected mail sources.
  2. Approve policy changes separately.
  3. Restrict access to captured message sources.

Founder / Non-technical

Stage the sender change

A rebrand should not interrupt scheduled newsletters.

Next steps

  1. Keep the previous working sender available.
  2. Name a campaign owner.
  3. Approve the rollout after evidence review.

[ FAQs ]

Frequently asked questions

Which Hellodialog DKIM design should I publish?

Get account-specific confirmation. Retrieved first-party pages disagree between a CNAME and two TXT selectors.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

Can I copy the abbreviated public key?

No. A value containing an ellipsis is not a complete key. Obtain the full generated value.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

Does clicking the sender confirmation link authenticate the domain?

No. Mailbox confirmation and receiving-system authentication prove different things.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

Should I add another SPF TXT record for Hellodialog?

No. Reconcile the documented include into the single existing SPF policy for the applicable owner.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

Should I immediately copy the sample reject policy?

No. Review every legitimate sender covered by that domain before increasing DMARC enforcement.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

Does a passing SPF result prove my From domain is aligned?

No. Compare the evaluated envelope domain with the From domain under the applicable alignment mode.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

What should a rebrand acceptance test include?

Test the new campaign From identity, receiving-system authentication and reply delivery before replacing working automations.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

What remains unverified in this guide?

The account’s correct DKIM design, live published records, actual envelope identity and end-to-end message results remain unverified.

Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account? Hoe stel ik SPF, DKIM en DMARC in voor mijn domein? RFC 7208 SPF RFC 6376 DKIM RFC 9989 DMARC

[ Sources ]

Sources

  1. Hoe voeg je een nieuw e-mailadres en domein toe aan je Hellodialog-account?

    Sections Activation23–31; SPF36–44; support CNAME47–50

  2. Hoe stel ik SPF, DKIM en DMARC in voor mijn domein?

    Sections SPF29–36; two TXT selectors37–45; policy example46–53; check54–58

  3. RFC 7208 SPF

    Sections §3.2; 3.3; 4.6.4

  4. RFC 6376 DKIM

    Sections §3.5; 3.6.2; 6.1

  5. RFC 9989 DMARC

    Sections §4.4; 4.7; 4.10; 5

[ Glossary ]

Glossary

SPF
Authorization of sending servers for the SMTP envelope domain; a passing result does not by itself prove alignment with the visible From.
DKIM selector
The s= value that identifies the public key beneath the signing domain’s _domainkey namespace.
DMARC alignment
The required relationship between the visible From domain and a domain that passes SPF or DKIM.
Return-Path
The delivered message header recording the reverse-path used for delivery failures.
Authoritative DNS
The DNS service responsible for publishing the domain’s records.

Enterprise provenance

Why top financial institutions and governments retired their email security dashboards.

Traditional email authentication platforms sell you a dashboard and ask your engineers to do the labour. In high-stakes environments, manual oversight means delayed enforcement, configuration drift and unmonitored shadow domains.

EmailAuth is the agentic email provenance platform. Our agents enforce p=reject, keep third-party senders aligned and move your domains to full RFC 9989 compliance, the new DMARC standard,, with human-in-the-loop auditability.

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