They Sent It

You’re In. Let’s Build Endurance.

Here’s 20% OFF To Get You Warmed Up…

First EnduranceThursday, Oct 15, 2026 at 12:29 AM EasternKlaviyo
First EnduranceYou’re In. Let’s Build Endurance.
Subject
You’re In. Let’s Build Endurance.
Preview text
Here’s 20% OFF To Get You Warmed Up…
From
contact@firstendurance.com
Sent
Thu Oct 15, 2026, 12:29 AM ET
Sent to
firstendurance.com, optygen.com
Size
45 KB
Images
15
Links
16, 5 of them buttons
Subject length
33 characters

Against First Endurance's usual

Sent in the 12 AM hour, which holds 10% of its emails; 13% arrive in the 4 AM hour. The subject is 33 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
You’re In. Let’s Build Endurance.
Date
Thu, 15 Oct 2026 04:29:12 +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

  1. 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

Report this email

Sent just before and after

Oct 17, 2026 10:50 PMWhen precision matters...
Oct 16, 2026 10:49 PMStructure your nutrition like your training
Oct 16, 2026 12:31 AMBuilt for endurance and proven under stress
Oct 15, 2026 12:29 AMYou’re In. Let’s Build Endurance. (this email)
Oct 14, 2026 10:48 PMBuilt for endurance and proven under stress
Oct 14, 2026 2:18 PMMind Over Matter
Oct 14, 2026 6:30 AMBuilt for Endurance.

More from First Endurance

All First Endurance emails

Get the Black Friday insights

We're collecting every Black Friday email from more than 50,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. You'll get a confirmation email first, and you can unsubscribe anytime.