They Sent It

How we decide which shirt goes in your box

The full process. From sourcing to packing.

MystershirtWednesday, May 20, 2026 at 9:15 AM EasternKlaviyo
MystershirtHow we decide which shirt goes in your box
Subject
How we decide which shirt goes in your box
Preview text
The full process. From sourcing to packing.
From
hello@mystershirt.com
Sent
Wed May 20, 2026, 9:15 AM ET
Sent to
Belgium (mystershirt.be), mystershirt.com, Poland (mystershirt.pl)
Size
34 KB
Images
9
Links
9, 1 of them buttons
Subject length
42 characters

Against Mystershirt's usual

Sent in the 9 AM hour, which holds 7% of its emails; 15% arrive in the 4 AM hour. The subject is 42 characters; its average is 43.

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
Mystershirt <[email protected]>
Subject
How we decide which shirt goes in your box
Date
Wed, 20 May 2026 13:15:33 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.hello.mystershirt.com
DKIM signature
d=shared.klaviyomail.com s=def1; d=hello.mystershirt.com s=mtd1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. from kl-203-16-17.kmta.shared.klaviyomail.com [170.203.16.17] by our receiving server with ESMTPS
  2. from (unnamed) by kmta-mta-green-….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

May 24, 2026 12:20 AMFind out what is inside
May 22, 2026 7:47 PMFind out what is inside
May 22, 2026 12:20 AMGet some variation in your collection
May 20, 2026 9:15 AMHow we decide which shirt goes in your box (this email)
May 19, 2026 11:38 PMFind out what is inside
May 19, 2026 8:19 PMCaught your attention?
May 18, 2026 9:57 AMCongratulations! Your account qualifies for our loyalty bonus!

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