Whey isolate meets grass-fed collagen
Preview text: 21g of protein in 80 calories. 40% off your first subscription order.

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- Subject
- Whey isolate meets grass-fed collagen
- Preview text
- 21g of protein in 80 calories. 40% off your first subscription order.
- From
- hello@
gainful.com - Brand
- Gainful
- ESP
- Klaviyo
- Sent
- Wed Oct 21, 2026, 5:42 PM ET
- Sent to
- Colombia (gainful.co), gainful.com
- Size
- 54 KB
- Images
- 20
- Links
- 17, 1 of them buttons
- Subject length
- 37 characters
Against Gainful's usual
Sent in its busiest hour, 5 PM, which holds 29% of its emails. The subject is 37 characters; its average is 34.
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
- Gainful <[email protected]>
- Subject
- Whey isolate meets grass-fed collagen
- Date
- Wed, 21 Oct 2026 21:42:57 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-canary-0
- Return-Path domain
- send.gainful.com
- DKIM signature
- d=gainful.com s=s1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-l62n8 with SMTP
- from (unnamed) by geopod-ismtpd-canary-0 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 25, 2026 4:26 PM | Last day: 40% off your first subscription order | |
| Oct 24, 2026 2:51 PM | What's NOT in your protein? | |
| Oct 23, 2026 3:16 PM | Myth: you're stuck with one flavor | |
| Oct 21, 2026 5:42 PM | Whey isolate meets grass-fed collagen (this email) | |
| Oct 20, 2026 4:43 PM | Which protein is right for you? | |
| Oct 19, 2026 2:50 PM | Your First Subscription Is 40% Off | |
| Oct 18, 2026 5:59 PM | “Gets me ready for my workout” - one of you |
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Same ESP and the closest weekly volume, sent on Oct 21, 2026.









