The science of staying cool
Preview text: Meet our most advanced comforter yet
Use this example
- Subject
- The science of staying cool
- Preview text
- Meet our most advanced comforter yet
- From
- hello@
sundaycitizen.co - Brand
- Sunday Citizen
- ESP
- Klaviyo
- Sent
- Mon Aug 31, 2026, 4:00 PM ET
- Sent to
- Colombia (sundaycitizen.co), sundaycitizen.com
- Size
- 49 KB
- Images
- 14
- Links
- 15, 2 of them buttons
- Subject length
- 27 characters
Against Sunday Citizen's usual
Sent in the 4 PM hour, which holds 12% of its emails; 14% arrive in the 6 PM hour. The subject is 27 characters; its average is 30.
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 Citizen <[email protected]>
- Subject
- The science of staying cool
- Date
- Mon, 31 Aug 2026 20:00:31 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-100
- Return-Path domain
- send.sundaycitizen.co
- DKIM signature
- d=sundaycitizen.co s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-5pzgq with SMTP
- from (unnamed) by geopod-ismtpd-100 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
Sent just before and after
| Sep 3, 2026 4:01 PM | Up to 50% OFF Sitewide* | |
| Sep 2, 2026 11:57 AM | You've Got VIP Early Access | |
| Sep 2, 2026 11:30 AM | You've Got VIP Early Access | |
| Aug 31, 2026 4:00 PM | The science of staying cool (this email) | |
| Aug 30, 2026 11:16 AM | Ends Tonight: 30% OFF | |
| Aug 29, 2026 11:30 AM | 48 Hours Only: 30% OFF | |
| Aug 28, 2026 3:01 PM | Your Weekend Starts Here |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Aug 31, 2026.
