Where your collagen comes from matters
Preview text: Explore our Bovine and Marine range!
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- Subject
- Where your collagen comes from matters
- Preview text
- Explore our Bovine and Marine range!
- From
- hello@
proto-col.com - Brand
- Proto-col
- ESP
- Klaviyo
- Sent
- Fri Jun 5, 2026, 5:00 AM ET
- Sent to
- United Kingdom (proto-col.co.uk), proto-col.com
- Size
- 72 KB
- Images
- 22
- Links
- 27, 7 of them buttons
- Subject length
- 38 characters
Against Proto-col's usual
Sent in its busiest hour, 5 AM, which holds 43% of its emails. 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
- Where your collagen comes from matters
- Date
- Fri, 05 Jun 2026 09:00:24 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-94
- 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
- from o1281.shared.klaviyomail.com [167.89.72.23] by our receiving server with ESMTPS
- by recvd-canary-…-fq878 with SMTP
- from (unnamed) by geopod-ismtpd-94 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
| Jun 6, 2026 11:36 AM | Your saved products are about to expire! | |
| Jun 6, 2026 5:00 AM | Confidence Starts with Healthy Hair! | |
| Jun 5, 2026 12:38 PM | We've saved these for you! | |
| Jun 5, 2026 5:00 AM | Where your collagen comes from matters (this email) | |
| May 30, 2026 5:00 AM | Are you taking the right collagen for your goal? | |
| May 28, 2026 12:00 PM | Unlock your energy with hydration | |
| May 26, 2026 3:00 AM | 50% off a routine upgrade ends TODAY! |
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