Do NOT open this email

Preview text: I'm serious.

Wednesday, Oct 28, 2026 at 9:43 PM EasternKlaviyo

Mystery Knives BoxDo NOT open this email

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Subject: Do NOT open this email
Preview text: I'm serious.
From: team@mysteryknivesbox.com
Brand: Mystery Knives Box
ESP: Klaviyo
Sent: Wed Oct 28, 2026, 9:43 PM ET
Sent to: knivesmysterybox.com, mysterykatana.com, mysterykatanas.com, mysteryknife.com, mysteryknives.com
Size: 63 KB
Images: 14
Links: 17, 1 of them buttons
Subject length: 22 characters

Against Mystery Knives Box's usual

Sent in the 9 PM hour, which holds 10% of its emails; 10% arrive in the 12 AM hour. The subject is 22 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.

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

	Oct 29, 2026 8:45 PM	TRICK OR TREAT...🎃
	Oct 29, 2026 11:58 AM	🍿NOW SHOWING🎬
	Oct 29, 2026 3:15 AM	pst... you still up?
	Oct 28, 2026 9:43 PM	Do NOT open this email (this email)
	Oct 28, 2026 3:15 PM	3 Day Left... 🎃
	Oct 28, 2026 12:44 AM	$85.50.
	Oct 27, 2026 5:43 PM	s.h.a.d.o.w.