They Sent It

Why we built this

It started with one problem. Wrist support.

HayabusaMonday, Oct 12, 2026 at 5:26 PM EasternKlaviyo
HayabusaWhy we built this
Subject
Why we built this
Preview text
It started with one problem. Wrist support.
From
newsletter@hayabusafight.com
Sent
Mon Oct 12, 2026, 5:26 PM ET
Sent to
hayabusafightwear.com
Size
49 KB
Images
20
Links
16, 1 of them buttons
Subject length
17 characters

Against Hayabusa's usual

Sent in the 5 PM hour, which holds 9% of its emails; 20% arrive in the 10 AM hour. The subject is 17 characters; its average is 30.

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From
Hayabusa <[email protected]>
Subject
Why we built this
Date
Mon, 12 Oct 2026 21:26:25 +0000 (UTC)
Message-ID domain
geopod-ismtpd-79
Return-Path domain
send.hayabusafight.com
DKIM signature
d=hayabusafight.com s=kl2
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-7rfns with SMTP
  2. from (unnamed) by geopod-ismtpd-79 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

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Sent just before and after

Oct 16, 2026 5:47 AMNot all gear is built the same
Oct 15, 2026 11:45 AMYour 20% Off Starts Now.
Oct 14, 2026 5:46 AMYour 10% Off is about to expire
Oct 12, 2026 5:26 PMWhy we built this (this email)
Oct 11, 2026 5:55 PMWelcome To Hayabusa!
Oct 10, 2026 12:44 PMLast Chance. Use Your 10%
Oct 10, 2026 5:43 AMWhy we built this

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