Last chance: 40% off our birthday sale
Preview text: Our 23rd birthday flash sale ends 2 September at 4pm.

Use this example
- Subject
- Last chance: 40% off our birthday sale
- Preview text
- Our 23rd birthday flash sale ends 2 September at 4pm.
- From
- hello@
proto-col.com - Brand
- Proto-col
- ESP
- Klaviyo
- Sent
- Wed Sep 2, 2026, 4:02 AM ET
- Sent to
- United Kingdom (proto-col.co.uk), proto-col.com
- Size
- 46 KB
- Images
- 15
- Links
- 16, 6 of them buttons
- Subject length
- 38 characters
Against Proto-col's usual
Sent in the 4 AM hour, which holds 5% of its emails; 43% arrive in the 5 AM hour. The subject is 38 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.
- From
- Proto-col <[email protected]>
- Subject
- Last chance: 40% off our birthday sale
- Date
- Wed, 02 Sep 2026 08:02:56 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-78
- Return-Path domain
- engage.proto-col.com
- DKIM signature
- d=proto-col.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-k6gzq with SMTP
- from (unnamed) by geopod-ismtpd-78 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| Sep 16, 2026 5:30 AM | Why your supplementation hasn't 'kicked in' yet. | |
| Sep 13, 2026 12:30 PM | Save on 3 months of glowing skin & smoother joints | |
| Sep 8, 2026 5:30 AM | On GLP-1? Make every bite count. | |
| Sep 2, 2026 4:02 AM | Last chance: 40% off our birthday sale (this email) | |
| Aug 31, 2026 4:00 AM | 6,700+ five-star reviews can't be wrong. | |
| Aug 28, 2026 11:30 AM | It's our birthday! 🎉 Enjoy 40% off everything! | |
| Aug 25, 2026 6:39 AM | Your saved products are about to expire! |
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