Ready to become Hard To Kill?
Preview text: Take 10% off all training programs and join the Brotherhood.

Use this example
- Subject
- Ready to become Hard To Kill?
- Preview text
- Take 10% off all training programs and join the Brotherhood.
- From
- support@
hardtokillfitness.co - Brand
- Hard To Kill Fitness
- ESP
- Klaviyo
- Sent
- Wed Oct 21, 2026, 1:15 PM ET
- Size
- 55 KB
- Images
- 7
- Links
- 12, 6 of them buttons
- Subject length
- 29 characters
Against Hard To Kill Fitness's usual
Sent in the 1 PM hour, which holds 11% of its emails; 35% arrive in the 10 AM hour. The subject is 29 characters; its average is 28.
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
- Hard To Kill Fitness <[email protected]>
- Subject
- Ready to become Hard To Kill?
- Date
- Wed, 21 Oct 2026 17:15:23 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-75
- Return-Path domain
- send.hardtokillfitness.co
- DKIM signature
- d=hardtokillfitness.co s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-d47lw with SMTP
- from (unnamed) by geopod-ismtpd-75 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| Oct 30, 2026 7:01 AM | LETHAL 6 // The new fitness test | |
| Oct 23, 2026 10:01 AM | Live Now: Exercise Swap 🔀 | |
| Oct 22, 2026 1:16 PM | Your discount expires tomorrow... | |
| Oct 21, 2026 1:15 PM | Ready to become Hard To Kill? (this email) | |
| Oct 20, 2026 10:04 AM | Five ways to drop your run time (most guys do zero) | |
| Oct 12, 2026 10:06 AM | 3 quick high impact workouts 🔥 | |
| Oct 9, 2026 1:04 PM | Boost Your Performance |
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Oct 23, 2026 10:01 AM
Your discount expires tomorrow...
Oct 22, 2026 1:16 PM
Five ways to drop your run time (most guys do zero)
Oct 20, 2026 10:04 AM
3 quick high impact workouts 🔥
Oct 12, 2026 10:06 AM
Oct 9, 2026 1:04 PM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 21, 2026.









