DO NOT OPEN THIS 🎃
Preview text: Dare to see what's inside?
Using this email in an article? Credit: Mystery Knives Box email via They Sent It, with a link to this page. Full-size image
- Subject
- DO NOT OPEN THIS 🎃
- Preview text
- Dare to see what's inside?
- From
- hello@
mysteryknivesbox.com - Brand
- Mystery Knives Box
- ESP
- Klaviyo
- Sent
- Fri Oct 23, 2026, 12:31 PM ET
- Sent to
- knivesmysterybox.com, mysterykatana.com, mysterykatanas.com, mysteryknife.com, mysteryknives.com
- Size
- 42 KB
- Images
- 11
- Links
- 10, 1 of them buttons
- Subject length
- 18 characters
Against Mystery Knives Box's usual
Sent in the 12 PM hour, which holds 8% of its emails; 10% arrive in the 12 AM hour. The subject is 18 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
- DO NOT OPEN THIS 🎃
- Date
- Fri, 23 Oct 2026 16:31:37 +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
- by … with HTTP
Other sending headers (names only): X-Mailgun-Sid, X-Mailgun-Tag, X-Mailgun-Rewrite-Sender-Header, X-Mailgun-Suppressions-Bypass
Sent just before and after
| Oct 25, 2026 7:10 PM | The knives come out at night | |
| Oct 23, 2026 7:57 PM | push. | |
| Oct 23, 2026 7:45 PM | you don't get to pick | |
| Oct 23, 2026 12:31 PM | DO NOT OPEN THIS 🎃 (this email) | |
| Oct 22, 2026 5:27 PM | someone left a note on box 13 | |
| Oct 20, 2026 7:08 PM | $36 | |
| Oct 19, 2026 5:09 PM | What people actually pulled... |
More from Mystery Knives Box
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Nov 3, 2026 12:24 PM
You left something on the bench
Nov 3, 2026 1:07 AM · Resent
Nov 2, 2026 10:06 PM
Nov 2, 2026 11:56 AM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 23, 2026.
