I'm the engineer who built the MACH. Here's what I fixed.

Preview text: The v3.0 was great. One thing kept me up at night.

VortexHausWednesday, Sep 30, 2026 at 12:08 PM EasternKlaviyo
VortexHausI'm the engineer who built the MACH. Here's what I fixed.
Subject
I'm the engineer who built the MACH. Here's what I fixed.
Preview text
The v3.0 was great. One thing kept me up at night.
From
info@vortexhaus.com
Sent
Wed Sep 30, 2026, 12:08 PM ET
Sent to
vortexhaus.com
Size
49 KB
Images
15
Links
15, 1 of them buttons
Subject length
57 characters

Against VortexHaus's usual

Sent in its busiest hour, 12 PM, which holds 39% of its emails. The subject is 57 characters; its average is 41.

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From
VortexHaus <[email protected]>
Subject
I'm the engineer who built the MACH. Here's what I fixed.
Date
Wed, 30 Sep 2026 16:08:36 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.hello.vortexhaus.com
DKIM signature
d=shared.klaviyomail.com s=def1; d=hello.vortexhaus.com s=mtd1
List-Unsubscribe
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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-Message, X-Kmail-Ops, X-Report-Abuse

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Sent just before and after

Oct 4, 2026 12:01 PMFall Reset Sale ends tonight
Oct 3, 2026 12:02 PMTheir numbers. Not ours.
Oct 2, 2026 12:01 PMThe question I get most. Here's the real answer.
Sep 30, 2026 12:08 PMI'm the engineer who built the MACH. Here's what I fixed. (this email)
Sep 28, 2026 12:07 PMWe asked 378 people why they hadn't bought yet.
Sep 26, 2026 12:00 PMYou already own the most expensive part
Sep 24, 2026 12:04 PMYou’re not sure yet. So here’s what we do.

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