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What your home lighting tells your brain

When the days get shorter, your environment does the talking.

Swanwick SleepTuesday, Sep 22, 2026 at 9:02 PM EasternKlaviyo
Swanwick SleepWhat your home lighting tells your brain
Subject
What your home lighting tells your brain
Preview text
When the days get shorter, your environment does the talking.
From
support@swanwicksleep.com
Sent
Tue Sep 22, 2026, 9:02 PM ET
Sent to
shopswanwick.com
Size
54 KB
Images
20
Links
19, 1 of them buttons
Subject length
40 characters

Against Swanwick Sleep's usual

Sent in the 9 PM hour, which holds 9% of its emails; 20% arrive in the 8 PM hour. The subject is 40 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
James Swanwick <[email protected]>
Subject
What your home lighting tells your brain
Date
Wed, 23 Sep 2026 01:02:45 +0000 (UTC)
Message-ID domain
geopod-ismtpd-4
Return-Path domain
send.swanwicksleep.com
DKIM signature
d=swanwicksleep.com s=s1
List-Unsubscribe
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Servers it passed through, newest first

  1. by recvd-…-n2md5 with SMTP
  2. from (unnamed) by geopod-ismtpd-4 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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