The problem with one-size-fits-all

Preview text: Two founders saw a better way to approach protein.

GainfulFriday, Oct 9, 2026 at 6:04 PM EasternKlaviyo
GainfulThe problem with one-size-fits-all
Subject
The problem with one-size-fits-all
Preview text
Two founders saw a better way to approach protein.
From
hello@gainful.com
Brand
Gainful
Sent
Fri Oct 9, 2026, 6:04 PM ET
Sent to
Colombia (gainful.co), gainful.com
Size
32 KB
Images
10
Links
10, 1 of them buttons
Subject length
34 characters

Against Gainful's usual

Sent in the 6 PM hour, which holds 14% of its emails; 30% arrive in the 5 PM hour. The subject is 34 characters, the same as its average.

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From
Gainful <[email protected]>
Subject
The problem with one-size-fits-all
Date
Fri, 09 Oct 2026 22:04:01 +0000 (UTC)
Message-ID domain
geopod-ismtpd-60
Return-Path domain
send.gainful.com
DKIM signature
d=gainful.com s=s1
List-Unsubscribe
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  2. from (unnamed) by geopod-ismtpd-60 with HTTP

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Sent just before and after

Oct 12, 2026 4:50 PMMore protein. Less of the extras.
Oct 11, 2026 5:39 PMWhey vs. plant: does it really matter?
Oct 10, 2026 3:45 PMYour protein powder can do this?
Oct 9, 2026 6:04 PMThe problem with one-size-fits-all (this email)
Oct 8, 2026 4:50 PMHow much protein do you actually need?
Oct 7, 2026 6:14 PMHow much protein do you actually need?
Oct 6, 2026 5:27 PM“This is a game changer”

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