Unlock the Science of a Healthier Smile with Underbrush
Plus get 15% off your order!
Nathan & Sons <[email protected]>
Share
Nathan & Sons promotes Underbrush, highlighting its benefits for a healthier smile. The brand offers a discount code, FOREST15, for customers to use at checkout. Nathan & Sons guarantees the Underbrush product, encouraging shoppers to purchase with the provided code.
What the raw message shows
From the headers
- Sent with
-
Klaviyo See it in the headers
In the email
- Promo code
- All Nathan & Sons promo codes
Across Nathan & Sons's email
- Sends
- About 3 a week
- DMARC
-
Enforced, quarantine
Mail failing authentication goes to spam.
The copy
23 words · under a minute to read
Experience the Underbrush Difference
Use the code: FOREST15 at checkout
Benefits of Underbrush Gum
USE CODE: FOREST15 | SHOP NOW
The Underbrush Guarantee
The words as text: what a screen reader can follow, and all there is when images don't load.
What the headers say
Read from the message's own headers, as it arrived.
- Came from
-
o1328.shared.klaviyomail.com
· 168.245.31.178
Klaviyo's sending servers
- SPF
- Pass for k1.send.nathanandsons.com
- DKIM
-
- Pass signed by send.nathanandsons.com
- DMARC
-
Pass for nathanandsons.com
Policy: quarantine
- Unsubscribe
-
One-click
Meets the Gmail and Yahoo rule for bulk senders.
- Complaints
- No feedback-loop header
Show all 21 headers Hide the headers
As received, minus the delivery side: the archive's own addresses show as [recipient], its mail servers as [receiver], signatures are left out and unsubscribe links trimmed to their host.
Route
- Received Identifies Klaviyo
- from o1328.shared.klaviyomail.com (168.245.31.178) by [receiver] (cloudflare) id myJt1RKXzdri for <[recipient]>; Wed, 15 Jul 2026 04:14:40 +0000
- Received
- by recvd-7888667b6-5qzj5 with SMTP id recvd-7888667b6-5qzj5-1-6A570930-1 2026-07-15 04:14:40.015958969 +0000 UTC m=+451937.769740189
- Received
- from NDY0Mzg3ODk (unknown) by geopod-ismtpd-3 (SG) with HTTP id tQM-p0psQxSTgZOD8peU7A Wed, 15 Jul 2026 04:14:40.013 +0000 (UTC)
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@k1.send.nathanandsons.com designates 168.245.31.178 as permitted sender) receiver=[receiver]; client-ip=168.245.31.178; envelope-from="[recipient]@k1.send.nathanandsons.com"; helo=o1328.shared.klaviyomail.com;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=send.nathanandsons.com header.s=s1 header.b=CTCaD8JZ; dmarc=pass header.from=nathanandsons.com policy.dmarc=quarantine; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o1328.shared.klaviyomail.com; spf=pass ([receiver]: domain of [recipient]@k1.send.nathanandsons.com designates 168.245.31.178 as permitted sender) smtp.mailfrom=[recipient]@k1.send.nathanandsons.com; arc=none smtp.remote-ip=168.245.31.178
Platform
- X-Kmail-Account
- UTBCj8
- X-Kmail-Flow
- Rx8qNE
- X-Kmail-Message
- S5wd5T
- X-Kmail-Ops
- 01KWXC7GA9B3WZNW77K5ZS8765
- X-SG-EID
- u001.5A6G4pd7VHH3CYZ0qS3Ub3GpDK3pk5FbRJnvFpKdnml/niasmLN1J5YbpSSlwBUElRzxpdfljxAzvULDW9vt50DPx40ZfyqvDsoDd4kuVnueTzkXM+8/QLNjGVgPVzgJqB7eoY8x23wNwesI6Ab2/71ATO1Ty1t+jBS/rQtlvY56yNETkJkaxaqT046qtwuNRAx4sDc171wAR2Ylb/LSrX0ON9QU7C6HjGN4V4LyjRhueEINIEjIKwKciwzd5KT8cwylQCi9NJ08xAi4L7hAVw==
- X-SG-ID
- u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvqsbkvOyt30Pr9gYiLQ9GJnHgYIo2uEs7Fa/1qAEMfKWOIi4WqViHq7yVBR308zqz3eQZ6f4VFmlLidW9Vdp1enPObdObJFf3BSvhSArc6k+JRyHnJtXZAcSPOnIuPhDvBaqIiK599Oarw+aNHOoeHQRfehs00ntwiQ2yY7SMcQO0l7sR1bue+bhXb0w4GL5p7IvUFEfpHOYWFfleRnaISM5nvzUG6onux+whaFgjO2dRgzevhgfmCv3fs6mWFUgBDiC8pDLlThMQLQtNib8YluiGOUPlVtEY5dfG+AQ7mdXYfy5Fihqcr8o40Sqsd7OMw
- X-Entity-ID
- u001.cRT1WUEQ2gTC52VvLnShoQ==
Unsubscribe and feedback
- List-Unsubscribe
- <https://manage.kmail-lists.com/…>
- List-Unsubscribe-Post
- List-Unsubscribe=One-Click
- X-Report-Abuse
- Please report any spam or abuse to: [email protected]
Message
- Content-Type
- multipart/alternative; boundary=08ea7daaa6c840c3c702a3db4e6961760534ec489d48fda9753c3f283b79
- Date
- Wed, 15 Jul 2026 04:14:40 +0000 (UTC)
- From
- Nathan & Sons <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <tQM-p0psQxSTgZOD8peU7A@geopod-ismtpd-3>
- Subject
- Unlock the Science of a Healthier Smile with Underbrush
More from Nathan & Sons
All 36 emailsSimilar campaigns from other brands
Different brands running the same play. Compare any of them side by side.
Archived for reference and commentary. Nathan & Sons, its logos and content are the property of their respective owners; Inbox Archive claims no affiliation and has disabled all links. If you own this content and would like it removed, get in touch.