Back in the office with Sunday Light

Preview text: See indoor sunlight in offices across the world

Sunday Light

Friday, Sep 4, 2026 at 1:00 PM EasternKlaviyo

Sunday LightBack in the office with Sunday Light

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Back in the office with Sunday Light - email from Sunday Light

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Subject: Back in the office with Sunday Light
Preview text: See indoor sunlight in offices across the world
From: enquiries@sundaylight.cc
Brand: Sunday Light
ESP: Klaviyo
Sent: Fri Sep 4, 2026, 1:00 PM ET
Size: 50 KB
Images: 21
Links: 21, 5 of them buttons
Subject length: 36 characters

Against Sunday Light's usual

Sent in the 1 PM hour, which holds 19% of its emails; 48% arrive in the 7 AM hour. The subject is 36 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: Sunday Light <[email protected]>
Subject: Back in the office with Sunday Light
Date: Fri, 04 Sep 2026 17:00:34 +0000
Message-ID domain: klaviyomail.com
Return-Path domain: k3.send.sundaylight.cc
DKIM signature: d=shared.klaviyomail.com s=def1; d=send.sundaylight.cc s=mtd1
List-Unsubscribe: Present, one-click

Servers it passed through, newest first

from (unnamed) by kmta-mta-green-….servers.clovesoftware.com with SMTP

Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse

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Sent just before and after

	Sep 13, 2026 7:07 AM	Why bright light boxes aren’t the answer
	Sep 9, 2026 7:05 AM	Land already adjusted
	Sep 5, 2026 7:05 AM	You already know you need morning light
	Sep 4, 2026 1:00 PM	Back in the office with Sunday Light (this email)
	Sep 1, 2026 7:05 AM	Living with Sunday
	Aug 29, 2026 7:02 AM	Engineering Indoor Sunlight
	Aug 27, 2026 7:06 AM	The Science of Bright Light