Doctor’s orders
Why a dark environment matters
Manta Sleep <[email protected]>
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Manta Sleep promotes sleep improvement expertise from Dr. Leah Kaylor. The brand highlights the importance of sleep and offers products like the SOUND Mask PRO Mask and Sleep Earplugs. Manta Sleep expresses appreciation for customer support.
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
39 words · under a minute to read
Manta Sleep logo
Dr. Leah Kaylor, sleep expert
The most important thing to improve sleep
What happens when sleep deprived
Sleep disorder red flags
Get your sleep in order
10P484ZDRWQN8
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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
-
o1355.shared.klaviyomail.com
· 167.89.100.40
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 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 o1355.shared.klaviyomail.com (167.89.100.40) by [receiver] (cloudflare) id ao6x6rEhl3qi for <[recipient]>; Thu, 16 Jul 2026 01:11:37 +0000
- Received
- by recvd-58f84bd465-lq4nj with SMTP id recvd-58f84bd465-lq4nj-1-6A582FC9-C 2026-07-16 01:11:37.119041105 +0000 UTC m=+527406.890820579
- Received
- from NTg5NTg1NQ (unknown) by geopod-ismtpd-49 (SG) with HTTP id dfkR_RQMTAWoqPkW5pwmag Thu, 16 Jul 2026 01:11:37.104 +0000 (UTC)
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@klaviyo.mantasleep.com designates 167.89.100.40 as permitted sender) receiver=[receiver]; client-ip=167.89.100.40; envelope-from="[recipient]@klaviyo.mantasleep.com"; helo=o1355.shared.klaviyomail.com;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=mantasleep.com header.s=kl2 header.b=CXUc0t61; dmarc=pass header.from=mantasleep.com policy.dmarc=none; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o1355.shared.klaviyomail.com; spf=pass ([receiver]: domain of [recipient]@klaviyo.mantasleep.com designates 167.89.100.40 as permitted sender) smtp.mailfrom=[recipient]@klaviyo.mantasleep.com; arc=none smtp.remote-ip=167.89.100.40
Platform
- X-Kmail-Account
- KYgPD8
- X-Kmail-Flow
- W8sJ8H
- X-Kmail-Message
- UTnSLE
- X-Kmail-Ops
- 01KXF2R3JSH9777JVSMDCCMC6Q
- X-SG-EID
- u001.xeEgffpsmHA1gha/vIlCfnFDCPUYhzR8uskr3qDb2pX8KCnJWbdA3jE6/xdLuuEdy2P4DBV8umCY0uyExloeEcH3wBWnjIg+uRqEpWHVtR4LV6oxa9HUaUzEhinYqtqoPoZ1Tr0wMe8H2KkJSpCmOs425AwHFqoRrcwARMZN9aOH0WvVuTCNDSyjU4QurDJhx1j32bAeJc6wOMI5b406L2kfuhg2P2xFs2ulzzfXGESu/+AG5rwjrIH54gJXgua6
- X-SG-ID
- u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvq5L1Pw6pZ2fI18+Jq/t9Axbq+AUi0MvktIN2NORfodbT9iqiPCgy5JT3/M1Wnmo/gcfHGJJptodyPODvqkX+iOAeD0g6GeMkQy/ZTQQCAusDEjqIPesLvdVNSBlf1kX0xJURUksDDYMG4mtJhtwe33x33B7gOnQ/elHQuGNBt3dYr/GpEbNMdS+CxufEAI59QBodhAEvPiX7lgpPDGLGr5g3cjbo9DLBT1gb3DvHb/4eOz/lBlgDYH7+051QAxmBbk+wqjBOI8JFgIsRjJ0phGTQMiTnH3mk8Z5YbnXXlFWJRPbZjiGHqU9ao9Xfb06cb
- 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=f3cbc40a50c873062081fb8cda6fabe2970f278dfe1c51290a275931dd59
- Date
- Thu, 16 Jul 2026 01:11:37 +0000 (UTC)
- From
- Manta Sleep <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <dfkR_RQMTAWoqPkW5pwmag@geopod-ismtpd-49>
- Subject
- Doctor’s orders
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