It’s Friday the 13th. Don’t tempt fate.
Sign up for our Black Friday Sale
Manta Sleep <[email protected]>
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Manta Sleep expresses gratitude to their supporters. They acknowledge their customers' loyalty and appreciation. The message coincides with Friday the 13th, framing it as a gesture of goodwill.
What the raw message shows
From the headers
- Sent with
-
Klaviyo See it in the headers
Across Manta Sleep's email
- Sends
- About 3 a week
- DMARC
-
Not enforced
Failures are monitored but still delivered.
The copy
15 words · under a minute to read
Manta Sleep logo
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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
-
o1310.shared.klaviyomail.com
· 167.89.100.198
Klaviyo's sending servers
- SPF
- Pass for klaviyo.mantasleep.com
- DKIM
-
- Pass signed by mantasleep.com
- DMARC
-
Pass for mantasleep.com
Policy: none, so failures would still be delivered
- Unsubscribe
-
One-click
Meets the Gmail and Yahoo rule for bulk senders.
- Complaints
- No feedback-loop header
Show all 20 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 o1310.shared.klaviyomail.com (167.89.100.198) by [receiver] (cloudflare) id q6LEDkKjSa9z for <[recipient]>; Fri, 13 Nov 2026 14:02:51 +0000
- Received
- by recvd-d487cd69d-88tfw with SMTP id recvd-d487cd69d-88tfw-1-6AF7188B-2B 2026-11-13 14:02:51.156478578 +0000 UTC m=+214787.742682832
- Received
- from NTg5NTg1NQ (unknown) by geopod-ismtpd-107 (SG) with HTTP id v0ct7T56R02mXPMA9Sb2hA Fri, 13 Nov 2026 14:02:51.137 +0000 (UTC)
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@klaviyo.mantasleep.com designates 167.89.100.198 as permitted sender) receiver=[receiver]; client-ip=167.89.100.198; envelope-from="[recipient]@klaviyo.mantasleep.com"; helo=o1310.shared.klaviyomail.com;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=mantasleep.com header.s=kl2 header.b=ll/JLsFm; dmarc=pass header.from=mantasleep.com policy.dmarc=none; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o1310.shared.klaviyomail.com; spf=pass ([receiver]: domain of [recipient]@klaviyo.mantasleep.com designates 167.89.100.198 as permitted sender) smtp.mailfrom=[recipient]@klaviyo.mantasleep.com; arc=none smtp.remote-ip=167.89.100.198
Platform
- X-Kmail-Account
- KYgPD8
- X-Kmail-Message
- 01M61D3B3DTFWQ466Z3FMVGQ4D
- X-Kmail-Ops
- 01KXF2R3JSH9777JVSMDCCMC6Q
- X-SG-EID
- u001.xeEgffpsmHA1gha/vIlCfnFDCPUYhzR8uskr3qDb2pX8KCnJWbdA3jE6/xdLuuEdy2P4DBV8umCY0uyExloeEYI4SKckItUe3xYoPrlr7n23yw88hQFC69F/7MqdHosIZhl/0GEcFzDtgdAdm54EW8RYtLrL+puVGN9YcHhUhEWqm0ZTMYqGIx+ilNkgFD69QNCw9wxsdhjHHg35yiBgLiqZv3xHe4akgh4cmCjq03vkKq+GWgn8hZt+BvI2iewU
- X-SG-ID
- u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvq5L1Pw6pZ2fI18+Jq/t9AxY8t7YCTCy7IOdSMatKI1SDTgCpbep8m09siQKtADlG8Ok+S0yVgK4IRHDlbQ59bu3Wb38nn+iugzzhB0EcuXAJGfI5yFFSmZB/8mZU4qA3rLo9jXGvGFIlkYf4Sz/+gpZHIHlqzH2mWAS1b+ZMwg875KY4LJQPH5VTdgLPPYuaT7XfOS5VJXvkgix81kS63Bg7855D9//Tahe5CtEcz5Mbb1smIYp3lt7w3Ko3dswGpoqFNw2eKhBG32ovnM6NvcMjTYsodFapN4U/4jgUjoGxGpbGSu5mk29LM/VefcSZVoeHMmXSbPVstW+BdQSI79A==
- X-Entity-ID
- u001.hfPXRH9Vf9JkJDdd7ZPpgQ==
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=27ffd062d7a147e9dfdd8bc1147b2721e60ce2ee48fc7309f470d78a4f68
- Date
- Fri, 13 Nov 2026 14:02:51 +0000 (UTC)
- From
- Manta Sleep <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <v0ct7T56R02mXPMA9Sb2hA@geopod-ismtpd-107>
- Subject
- It’s Friday the 13th. Don’t tempt fate.
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