Don’t Shop Until You Open This.
Preview text: Your exclusive Mystery Knives member discount is ready to claim.

Use this example
- Subject
- Don’t Shop Until You Open This.
- Preview text
- Your exclusive Mystery Knives member discount is ready to claim.
- From
- hello@
mysteryknivesbox.com - Brand
- Mystery Knives Box
- ESP
- Klaviyo
- 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
- 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 13, 2026 12:16 AM | Welcome to Mystery Knives | |
| Oct 12, 2026 8:55 PM | 🎃🎃🎃🎃🎃 Spooky Reviews? | |
| Oct 12, 2026 3:43 AM | STILL THINKING ABOUT IT? | |
| Oct 12, 2026 12:01 AM | Don’t Shop Until You Open This. (this email) | |
| Oct 9, 2026 9:57 PM | I have a weird question… | |
| Oct 7, 2026 8:28 PM | THE SPOOKY BOX IS BACK! | |
| Oct 6, 2026 7:17 PM | S.P.O.O.K.Y. |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 12, 2026.









