Introducing Endorphin Tempo
Preview text: A streamlined carry system for the days you do not need everything.

Using this email in an article? Credit: Endorphin email via They Sent It, with a link to this page. Full-size image
- Subject
- Introducing Endorphin Tempo
- Preview text
- A streamlined carry system for the days you do not need everything.
- From
- support@
endorphinbelt.com - Brand
- Endorphin
- ESP
- Klaviyo
- Sent
- Sun Sep 20, 2026, 9:31 AM ET
- Size
- 39 KB
- Images
- 11
- Links
- 11, 4 of them buttons
- Subject length
- 27 characters
Against Endorphin's usual
Sent in the 9 AM hour, which holds 15% of its emails; 26% arrive in the 6 AM hour. The subject is 27 characters; its average is 26.
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
- The Endorphin Belt <[email protected]>
- Subject
- Introducing Endorphin Tempo
- Date
- Sun, 20 Sep 2026 13:31:24 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.endorphinbelt.com
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.endorphinbelt.com 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
Sent just before and after
| Oct 6, 2026 10:01 AM | Rose Reign is Coming | |
| Oct 3, 2026 10:02 AM | Meet Rose Reign. | |
| Sep 25, 2026 11:30 AM | Same Endorphin standard. Streamlined. | |
| Sep 20, 2026 9:31 AM | Introducing Endorphin Tempo (this email) | |
| Sep 7, 2026 9:07 AM | Labor Day Sale Final day | |
| Sep 5, 2026 1:40 PM | Don’t miss this | |
| Sep 4, 2026 1:39 PM | This is why we built it |
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Run with your dog. Hands free.
Oct 23, 2026 4:02 AM
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 20, 2026.









