What’s stopping you?

Light, noise, stress – solved.

Tue, Jul 14 · 9:10pm ET Promotions & Sales

Sent with Klaviyo Code unique per subscriber Sends about 3 a week All facts

Manta Sleep promotes its sleep solutions, offering 10% off with a provided code. The brand showcases various products, including masks, earplugs, and eye cups, to help improve sleep quality. Manta Sleep expresses appreciation for customer support.

What the raw message shows

From the headers

Sent with: Klaviyo See it in the headers

In the email

Promo code: A code unique to each subscriber, so it is not shown here.
All Manta Sleep promo codes

Across Manta Sleep's email

Sends: About 3 a week
DMARC: Not enforced
Failures are monitored but still delivered.

Manta Sleep mantasleep.com

Whatever stops you sleeping, its days are numbered. Join 2+ million people taking control of their sleep with Manta masks and accessories.

All 39 emails from Manta Sleep

The copy

44 words · under a minute to read

Manta Sleep logo

Take 10% off with code

10P484ZDRWQN8

Block out every bit of light

Put background noise on mute

White Noise Machine

Get wound down

COOL Eye Cups

STEAM Eye Cups

They get it

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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

o1377.shared.klaviyomail.com · 149.72.217.41

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

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 o1377.shared.klaviyomail.com (149.72.217.41) by [receiver] (cloudflare) id TUXjYobudTMe for <[recipient]>; Wed, 15 Jul 2026 01:10:26 +0000
Received: by recvd-canary-59f598c975-lktts with SMTP id recvd-canary-59f598c975-lktts-1-6A56DE02-9 2026-07-15 01:10:26.071320115 +0000 UTC m=+443046.192182885
Received: from NTg5NTg1NQ (unknown) by geopod-ismtpd-18 (SG) with HTTP id _i9DpV_LS8WLCY_GjRilUQ Wed, 15 Jul 2026 01:10:26.060 +0000 (UTC)

Authentication

Received-SPF Authentication result: pass ([receiver]: domain of [recipient]@klaviyo.mantasleep.com designates 149.72.217.41 as permitted sender) receiver=[receiver]; client-ip=149.72.217.41; envelope-from="[recipient]@klaviyo.mantasleep.com"; helo=o1377.shared.klaviyomail.com;
Authentication-Results Authentication result: [receiver]; dkim=pass header.d=mantasleep.com header.s=kl2 header.b=Faz95mIr; dmarc=pass header.from=mantasleep.com policy.dmarc=none; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o1377.shared.klaviyomail.com; spf=pass ([receiver]: domain of [recipient]@klaviyo.mantasleep.com designates 149.72.217.41 as permitted sender) smtp.mailfrom=[recipient]@klaviyo.mantasleep.com; arc=none smtp.remote-ip=149.72.217.41

Platform

X-Kmail-Account: KYgPD8
X-Kmail-Flow: W8sJ8H
X-Kmail-Message: RSsUdA
X-Kmail-Ops: 01KXF2R3JSH9777JVSMDCCMC6Q
X-SG-EID: u001.xeEgffpsmHA1gha/vIlCfnFDCPUYhzR8uskr3qDb2pX8KCnJWbdA3jE6/xdLuuEdy2P4DBV8umCY0uyExloeEUtob8jcBYoFMDx+iSpKJ9f/1Gg3EE/uJ+ZM8mqtcJd368fko/4U4NBzLcyORuieAl2OWk2I0LvlFt6VfiSwdkjlHZewpsmjZTog2pVnx6ENjqFA86Nlj7mDq/vVElyzUkhWTiJRVpCxLOfbV2/jlaxlL3gHdcZoUdX4lt8NU8TAQ3ECDT9oVFPTaY0yuftbxg==
X-SG-ID: u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvq5L1Pw6pZ2fI18+Jq/t9Axbq+AUi0MvktIN2NORfodbT9iqiPCgy5JT3/M1Wnmo/gXX79XCGC+R2pIUafS7mHyBp778Ocb6355s8e/1KicAxzd9lMJ4T5YFo3LVK6lkE8i2NmIfAXHtVlAPNF3a+sIUbDAb8xxH6f4hm+yCC5frb4Y/Fakr6t5SUiNlgZjp4LY9/D5SOFIvKgdSnnA/jav92VZaAmb+uURKj9cpFp8xxWpfpmbRS06pMbFmWPG0s3ye2o8cKqK8aXoiA3hdBAavMOYma4Y5+B7kawzv/I8O4qFJhLtPHrmDf8xaI7U0Y9
X-Entity-ID: u001.hfPXRH9Vf9JkJDdd7ZPpgQ==

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Message

Content-Type: multipart/alternative; boundary=26a86b95ff5c707bfbfba3052f7524a58c7d00dc7a50eedca9dce20e2997
Date: Wed, 15 Jul 2026 01:10:26 +0000 (UTC)
From: Manta Sleep <[email protected]>
Mime-Version: 1.0
Message-ID: <_i9DpV_LS8WLCY_GjRilUQ@geopod-ismtpd-18>
Subject: What’s stopping you?

More from Manta Sleep

All 39 emails

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