ARC preserves email authentication across forwarding hops. SPF, DKIM, and DMARC stay intact so your messages don't land in spam.*
*Delivery ultimately depends on the recipient's mail server. Results may vary.
Get StartedForward branded domain emails to team members without losing DMARC authentication. ARC ensures recipients trust the forwarded message.
Maintain DMARC, SPF, and DKIM compliance across complex routing. ARC creates a verifiable chain of custody for every forwarded email.
Use a custom domain for professional appearance and forward to Gmail or Outlook without spam flags. ARC keeps your emails in the inbox.
Build products that receive email on custom domains. ARC keeps downstream systems trusting forwarded messages.
Every forwarded email includes ARC-Seal, ARC-Message-Signature, and ARC-Authentication-Results headers to preserve the authentication chain.
Each forwarded message is cryptographically signed using KaiMail's domain key, so receiving servers can verify it hasn't been tampered with.
Receiving servers can validate the original SPF, DKIM, and DMARC results even after the email has been forwarded through KaiMail.
ARC and DKIM signing is available from KaiMail Basic through KaiMail Business. No upgrade required — every forwarded email is signed automatically.
ARC signing is included on all plans. No credit card required to get started.