Built for Endurance.
Preview text: Save 20% on clinically formulated fueling.
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- Subject
- Built for Endurance.
- Preview text
- Save 20% on clinically formulated fueling.
- From
- contact@
firstendurance.com - Brand
- First Endurance
- ESP
- Klaviyo
- Sent
- Wed Aug 19, 2026, 4:15 AM ET
- Sent to
- firstendurance.com
- Size
- 45 KB
- Images
- 15
- Links
- 17, 5 of them buttons
- Subject length
- 20 characters
Against First Endurance's usual
Sent in its busiest hour, 4 AM, which holds 13% of its emails. The subject is 20 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
- First Endurance <[email protected]>
- Subject
- Built for Endurance.
- Date
- Wed, 19 Aug 2026 08:15:33 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.firstendurance.com
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.firstendurance.com s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-blue-….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-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse
Sent just before and after
| Sep 18, 2026 2:31 PM | But Does It Work? | |
| Sep 5, 2026 1:04 PM | Harnessing the Power of Ashwagandha | |
| Aug 20, 2026 6:27 PM | The Science of Iron & Oxygen Delivery | |
| Aug 19, 2026 4:15 AM | Built for Endurance. (this email) | |
| Aug 18, 2026 2:09 PM | Thin Air at Leadville | |
| Aug 10, 2026 7:38 PM | Meet Alexey & Willie Watts at Leadville | |
| Aug 5, 2026 3:58 PM | The Science of Tart Cherry |
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