Don’t Shop Until You Open This.

Preview text: Your exclusive Mystery Knives member discount is ready to claim.

Mystery Knives BoxMonday, Oct 12, 2026 at 12:01 AM EasternKlaviyo
Mystery Knives BoxDon’t Shop Until You Open This.
Subject
Don’t Shop Until You Open This.
Preview text
Your exclusive Mystery Knives member discount is ready to claim.
From
hello@mysteryknivesbox.com
Sent
Mon Oct 12, 2026, 12:01 AM ET
Sent to
knivesmysterybox.com, mysteryknife.com, mysteryknives.com
Size
31 KB
Images
5
Links
5, 2 of them buttons
Subject length
31 characters

Against Mystery Knives Box's usual

Sent in its busiest hour, 12 AM, which holds 10% of its emails. The subject is 31 characters; its average is 22.

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
Mystery Knives <[email protected]>
Subject
Don’t Shop Until You Open This.
Date
Mon, 12 Oct 2026 04:01:35 +0000
Message-ID domain
shopify.com
Return-Path domain
mailer0hi.mysteryknivesbox.com
DKIM signature
d=mailer0hi.mysteryknivesbox.com s=pdk2
List-Unsubscribe
Present, one-click
Feedback-ID sender
shopify

Servers it passed through, newest first

  1. by … with HTTP

Other sending headers (names only): X-Mailgun-Sid, X-Mailgun-Tag, X-Mailgun-Rewrite-Sender-Header, X-Mailgun-Suppressions-Bypass

Report this email

Sent just before and after

Oct 13, 2026 12:16 AMWelcome to Mystery Knives
Oct 12, 2026 8:55 PM🎃🎃🎃🎃🎃 Spooky Reviews?
Oct 12, 2026 3:43 AMSTILL THINKING ABOUT IT?
Oct 12, 2026 12:01 AMDon’t Shop Until You Open This. (this email)
Oct 9, 2026 9:57 PMI have a weird question…
Oct 7, 2026 8:28 PMTHE SPOOKY BOX IS BACK!
Oct 6, 2026 7:17 PMS.P.O.O.K.Y.

More from Mystery Knives Box

All Mystery Knives Box emails

Sent the same day by similar brands

Same ESP and the closest weekly volume, sent on Oct 12, 2026.

Get the Black Friday insights

We're collecting every Black Friday email from more than 50,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. Unsubscribe anytime.