The science behind the squeeze
Preview text: A podcast conversation on guided isometric handgrip training.
Using this email in an article? Credit: Zona Health email via They Sent It, with a link to this page. Full-size image
- Subject
- The science behind the squeeze
- Preview text
- A podcast conversation on guided isometric handgrip training.
- From
- customerservice@
zona.com - Brand
- Zona Health
- ESP
- Klaviyo
- Sent
- Tue Oct 13, 2026, 9:02 AM ET
- Sent to
- buyzona.com, zona.com
- Size
- 45 KB
- Images
- 8
- Links
- 9, 4 of them buttons
- Subject length
- 30 characters
Against Zona Health's usual
Sent in the 9 AM hour, which holds 10% of its emails; 17% arrive in the 2 PM hour. The subject is 30 characters; its average is 39.
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
- Julie from Zona Health <[email protected]>
- Subject
- The science behind the squeeze
- Date
- Tue, 13 Oct 2026 13:02:15 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-28
- Return-Path domain
- send.zona.com
- DKIM signature
- d=zona.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-canary-…-cnrnr with SMTP
- from (unnamed) by geopod-ismtpd-28 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| Oct 15, 2026 9:02 PM | Welcome to the Zona Family! | |
| Oct 15, 2026 8:39 AM | The Zona Plus Was An Accidental Discovery | |
| Oct 14, 2026 2:51 PM | Welcome to the Zona Family! | |
| Oct 13, 2026 9:02 AM | The science behind the squeeze (this email) | |
| Oct 13, 2026 8:38 AM | Welcome to the Zona Family! | |
| Oct 10, 2026 9:01 AM | What if your next health goal required less? | |
| Oct 7, 2026 3:46 PM | ⏰ Hours left to save $100 on Zona |
More from Zona Health
All Zona Health emailsTry this for seven days—without chasing perfection
Nov 7, 2026 1:00 PM
Heart health for men: a practical guide for Movember
Nov 3, 2026 2:02 PM
How does Zona Plus personalize a session?
Nov 1, 2026 1:00 PM
Give the end of your day a softer landing
Oct 29, 2026 1:01 PM
A handgrip should not leave you guessing
Oct 24, 2026 10:02 AM
Hear About How Zona Has Helped Others Like You!
Oct 21, 2026 12:30 AM
The business story behind Zona Health
Oct 20, 2026 11:30 AM
Hear About How Zona Has Helped Others Like You!
Oct 19, 2026 9:06 PM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 13, 2026.
