Support your immunity from the inside out.
Preview text: Save over £10 on three wellness favourites in one bundle.

Using this email in an article? Credit: Proto-col email via They Sent It, with a link to this page. Full-size image
- Subject
- Support your immunity from the inside out.
- Preview text
- Save over £10 on three wellness favourites in one bundle.
- From
- hello@
proto-col.com - Brand
- Proto-col
- ESP
- Klaviyo
- Sent
- Tue Oct 20, 2026, 5:30 AM ET
- Sent to
- United Kingdom (proto-col.co.uk), proto-col.com
- Size
- 76 KB
- Images
- 13
- Links
- 19, 3 of them buttons
- Subject length
- 42 characters
Against Proto-col's usual
Sent in its busiest hour, 5 AM, which holds 43% of its emails. The subject is 42 characters; its average is 38.
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
- Support your immunity from the inside out.
- Date
- Tue, 20 Oct 2026 09:30:09 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-123
- 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-…-vtksq with SMTP
- from (unnamed) by geopod-ismtpd-123 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
| Oct 22, 2026 6:47 AM | Welcome to Proto-Col! 💜 | |
| Oct 21, 2026 10:25 AM | Tous les conseils, astuces et le savoir de Proto-Col | |
| Oct 20, 2026 10:24 AM | Le Secret Beauté : Le Collagène Beauté de Proto-col | |
| Oct 20, 2026 5:30 AM | Support your immunity from the inside out. (this email) | |
| Oct 19, 2026 10:23 AM | Continuons notre conversation sur les réseaux sociaux ! | |
| Oct 18, 2026 12:22 PM | Your discount is about to expire! | |
| Oct 18, 2026 10:21 AM | Découvrez pourquoi les experts et les clients aiment Proto-col ! |
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Same ESP and the closest weekly volume, sent on Oct 20, 2026.









