"This is the best collagen I’ve used yet."

Preview text: Buy one get one free on capsules and gels

Proto-colThursday, Jun 11, 2026 at 5:00 AM EasternKlaviyo
Proto-col"This is the best collagen I’ve used yet."
Subject
"This is the best collagen I’ve used yet."
Preview text
Buy one get one free on capsules and gels
From
hello@proto-col.com
Sent
Thu Jun 11, 2026, 5:00 AM ET
Sent to
United Kingdom (proto-col.co.uk), proto-col.com
Size
71 KB
Images
17
Links
22, 10 of them buttons
Subject length
44 characters

Against Proto-col's usual

Sent in its busiest hour, 5 AM, which holds 43% of its emails. The subject is 44 characters; its average is 38.

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From
Proto-col <[email protected]>
Subject
"This is the best collagen I’ve used yet."
Date
Thu, 11 Jun 2026 09:00:14 +0000 (UTC)
Message-ID domain
geopod-ismtpd-82
Return-Path domain
engage.proto-col.com
DKIM signature
d=proto-col.com s=kl2
List-Unsubscribe
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  1. from o1280.shared.klaviyomail.com [167.89.72.22] by our receiving server with ESMTPS
  2. by recvd-…-d6qhn with SMTP
  3. from (unnamed) by geopod-ismtpd-82 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

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