⏳ Last call: our birthday 1+1 ends tonight

Preview text: After midnight, one box per order again. Grab your second now.

MystershirtFriday, Oct 16, 2026 at 8:35 AM EasternKlaviyo
Mystershirt⏳ Last call: our birthday 1+1 ends tonight
Subject
⏳ Last call: our birthday 1+1 ends tonight
Preview text
After midnight, one box per order again. Grab your second now.
From
hello@mystershirt.com
Sent
Fri Oct 16, 2026, 8:35 AM ET
Sent to
Belgium (mystershirt.be), mystershirt.com, Poland (mystershirt.pl)
Size
29 KB
Images
6
Links
6, 1 of them buttons
Subject length
43 characters

Against Mystershirt's usual

Sent in the 8 AM hour, which holds 3% of its emails; 15% arrive in the 4 AM hour. The subject is 43 characters, the same as its average.

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
⏳ Last call: our birthday 1+1 ends tonight
Date
Fri, 16 Oct 2026 12:35:09 +0000 (UTC)
Message-ID domain
geopod-ismtpd-1
Return-Path domain
k1.hello.mystershirt.com
DKIM signature
d=hello.mystershirt.com s=s1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-vf468 with SMTP
  2. from (unnamed) by geopod-ismtpd-1 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

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Sent just before and after

Oct 21, 2026 11:35 AMStill there?
Oct 21, 2026 11:15 AMMoving Warehouse Clearance! 🚚
Oct 16, 2026 1:45 PM🔥 The best shirts are going out now
Oct 16, 2026 8:35 AM⏳ Last call: our birthday 1+1 ends tonight (this email)
Oct 15, 2026 8:58 AM⚠️ Your size goes first. 1+1 for a little longer.
Oct 14, 2026 7:15 AM⏳ Open one now. Keep one sealed for the big moment.
Oct 13, 2026 12:43 PM🎲 Two reveals. Double the chance of that one shirt.

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