Why we built this
Preview text: It started with one problem. Wrist support.
Using this email in an article? Credit: Hayabusa email via They Sent It, with a link to this page. Full-size image
- Subject
- Why we built this
- Preview text
- It started with one problem. Wrist support.
- From
- newsletter@
hayabusafight.com - Brand
- Hayabusa
- ESP
- Klaviyo
- Sent
- Sat Oct 10, 2026, 5:43 AM ET
- Sent to
- hayabusafight.com
- Size
- 49 KB
- Images
- 20
- Links
- 16, 1 of them buttons
- Subject length
- 17 characters
Against Hayabusa's usual
Sent in the 5 AM hour, which holds 5% of its emails; 20% arrive in the 10 AM hour. The subject is 17 characters; its average is 30.
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
- Hayabusa <[email protected]>
- Subject
- Why we built this
- Date
- Sat, 10 Oct 2026 09:43:34 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-26
- Return-Path domain
- send.hayabusafight.com
- DKIM signature
- d=hayabusafight.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-kd2dx with SMTP
- from (unnamed) by geopod-ismtpd-26 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 12, 2026 5:26 PM | Why we built this | |
| Oct 11, 2026 5:55 PM | Welcome To Hayabusa! | |
| Oct 10, 2026 12:44 PM | Last Chance. Use Your 10% | |
| Oct 10, 2026 5:43 AM | Why we built this (this email) | |
| Oct 9, 2026 10:15 AM | Your Boxing Setup Works Together | |
| Oct 9, 2026 6:12 AM | Welcome To Hayabusa! | |
| Oct 8, 2026 12:43 PM | You unlocked 10% off — your gear is still here. |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 10, 2026.
