What James found inside his mystery box 📦
Preview text: He spent £50. Look what turned up.

Using this email in an article? Credit: HYDRO email via They Sent It, with a link to this page. Full-size image
- Subject
- What James found inside his mystery box 📦
- Preview text
- He spent £50. Look what turned up.
- From
- hello@
hydrouk.co - Brand
- HYDRO
- ESP
- Klaviyo
- Sent
- Sat Sep 19, 2026, 10:45 AM ET
- Size
- 50 KB
- Images
- 17
- Links
- 17, 4 of them buttons
- Subject length
- 41 characters
Against HYDRO's usual
Sent in the 10 AM hour, which holds 5% of its emails; 36% arrive in the 2 PM hour. The subject is 41 characters; its average is 33.
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
- HYDRO <[email protected]>
- Subject
- What James found inside his mystery box 📦
- Date
- Sat, 19 Sep 2026 14:45:06 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.hydrouk.co
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.hydrouk.co s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-blue-….servers.clovesoftware.com with SMTP
Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse
Sent just before and after
| Sep 22, 2026 2:45 PM | The black line under your doors isn't going anywhere | |
| Sep 22, 2026 3:30 AM | Before you buy more car shampoo... | |
| Sep 21, 2026 3:29 AM | The switch that changes everything | |
| Sep 19, 2026 10:45 AM | What James found inside his mystery box 📦 (this email) | |
| Sep 18, 2026 10:46 AM | The Autumn Mystery Box 🍂 | |
| Sep 17, 2026 8:06 PM | Order #72924 status: Ready for Shipping | |
| Sep 16, 2026 8:00 PM | Here’s proof works |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 19, 2026.









