The hidden cost of running your heat all day
Preview text: It's not the cold outside. It's the heat inside.
Use this example
- Subject
- The hidden cost of running your heat all day
- Preview text
- It's not the cold outside. It's the heat inside.
- From
- info@
onsensecret.com - Brand
- Onsen Secret
- ESP
- Klaviyo
- Sent
- Mon Oct 19, 2026, 12:16 PM ET
- Size
- 67 KB
- Images
- 19
- Links
- 26, 2 of them buttons
- Subject length
- 44 characters
Against Onsen Secret's usual
Sent in its busiest hour, 12 PM, which holds 66% of its emails. The subject is 44 characters; its average is 34.
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
- Onsen Secret <[email protected]>
- Subject
- The hidden cost of running your heat all day
- Date
- Mon, 19 Oct 2026 16:16:31 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-37
- Return-Path domain
- send.onsensecret.com
- DKIM signature
- d=onsensecret.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-djfjg with SMTP
- from (unnamed) by geopod-ismtpd-37 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
| Oct 26, 2026 12:42 PM | A small gift before the weekend gets busy | |
| Oct 23, 2026 12:02 PM | The layering mistake irritating your neck | |
| Oct 21, 2026 12:01 PM | Choose the ritual that fits right now | |
| Oct 19, 2026 12:16 PM | The hidden cost of running your heat all day (this email) | |
| Oct 16, 2026 12:00 PM | When the season finally catches up | |
| Oct 14, 2026 12:03 PM | The makeup removal step everyone rushes | |
| Oct 12, 2026 12:01 PM | The shorter-days effect on your skin |
More from Onsen Secret
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Nov 6, 2026 3:00 AM
The hand cracking starts earlier than you think
Nov 4, 2026 3:00 AM
Why your skin feels tight when the heat turns on
Nov 3, 2026 12:00 PM
October wins: you showed up again
Oct 30, 2026 4:01 AM
Oct 28, 2026 5:38 PM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 19, 2026.
