They Sent It

Have you heard?

You will soon.

Manta SleepTuesday, Sep 29, 2026 at 9:06 AM EasternKlaviyo
Manta SleepHave you heard?
Subject
Have you heard?
Preview text
You will soon.
From
support@mantasleep.com
Sent
Tue Sep 29, 2026, 9:06 AM ET
Sent to
mantasleep.com
Size
32 KB
Images
8
Links
9, 5 of them buttons
Subject length
15 characters

Against Manta Sleep's usual

Sent in the 9 AM hour, which holds 14% of its emails; 19% arrive in the 10 AM hour. The subject is 15 characters; its average is 29.

Email headers

What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.

From
Manta Sleep <[email protected]>
Subject
Have you heard?
Date
Tue, 29 Sep 2026 13:06:16 +0000 (UTC)
Message-ID domain
geopod-ismtpd-42
Return-Path domain
klaviyo.mantasleep.com
DKIM signature
d=mantasleep.com s=kl2
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-bmmmn with SMTP
  2. from (unnamed) by geopod-ismtpd-42 with HTTP

Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID

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Sep 23, 2026 6:00 AMYour in-laws don't have blackout curtains
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