The glasses that changed nighttime forever

Preview text: Scientifically validated. Proven to perform.

Swanwick SleepTuesday, Oct 20, 2026 at 6:16 AM EasternKlaviyo
Swanwick SleepThe glasses that changed nighttime forever
Subject
The glasses that changed nighttime forever
Preview text
Scientifically validated. Proven to perform.
From
support@swanwicksleep.com
Sent
Tue Oct 20, 2026, 6:16 AM ET
Sent to
bluelighthack.com
Size
43 KB
Images
16
Links
14, 5 of them buttons
Subject length
42 characters

Against Swanwick Sleep's usual

Sent in the 6 AM hour, which holds 13% of its emails; 21% arrive in the 8 PM hour. The subject is 42 characters; its average is 38.

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
Swanwick Sleep <[email protected]>
Subject
The glasses that changed nighttime forever
Date
Tue, 20 Oct 2026 10:16:49 +0000 (UTC)
Message-ID domain
geopod-ismtpd-91
Return-Path domain
send.swanwicksleep.com
DKIM signature
d=swanwicksleep.com s=s1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-s4v2c with SMTP
  2. from (unnamed) by geopod-ismtpd-91 with HTTP

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

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