They Sent It

Train Harder. Recover Smarter. Save 20%.

Unlock a complete endurance fueling system.

First EnduranceThursday, Oct 29, 2026 at 10:27 AM EasternKlaviyo
First EnduranceTrain Harder. Recover Smarter. Save 20%.
Subject
Train Harder. Recover Smarter. Save 20%.
Preview text
Unlock a complete endurance fueling system.
From
contact@firstendurance.com
Sent
Thu Oct 29, 2026, 10:27 AM ET
Sent to
optygen.com
Size
45 KB
Images
15
Links
17, 5 of them buttons
Subject length
40 characters

Against First Endurance's usual

Sent in the 10 AM hour, which holds 10% of its emails; 12% arrive in the 4 AM hour. The subject is 40 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
Train Harder. Recover Smarter. Save 20%.
Date
Thu, 29 Oct 2026 14:27:29 +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

Nov 5, 2026 2:17 AMYour Foundation for the Work Ahead
Nov 3, 2026 1:11 PMComplete recovery, every time
Oct 30, 2026 3:17 AMTurning PRO in the Winter
Oct 29, 2026 10:27 AMTrain Harder. Recover Smarter. Save 20%. (this email)
Oct 27, 2026 10:20 PMTrain Harder. Recover Smarter. Save 20%.
Oct 27, 2026 8:05 PMMake Your Training Count
Oct 23, 2026 12:37 AMThe easiest thing you'll do today

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.