How do you know if compression is doing anything?

Preview text: There's a right amount of firm. Here's where it sits.

SupacoreWednesday, Aug 5, 2026 at 9:00 PM EasternKlaviyo
SupacoreHow do you know if compression is doing anything?
Subject
How do you know if compression is doing anything?
Preview text
There's a right amount of firm. Here's where it sits.
From
info@supacore.com
Sent
Wed Aug 5, 2026, 9:00 PM ET
Sent to
antenatalshorts.com, United Kingdom (coreshort.co.uk), prenatalshorts.com, Australia (supacore.com.au)
Size
71 KB
Images
13
Links
15, 7 of them buttons
Subject length
49 characters

Against Supacore's usual

Sent in its busiest hour, 9 PM, which holds 36% of its emails. The subject is 49 characters; its average is 45.

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From
Supacore <[email protected]>
Subject
How do you know if compression is doing anything?
Date
Thu, 06 Aug 2026 01:00:11 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
marketing.supacore.com
DKIM signature
d=shared.klaviyomail.com s=def1; d=supacore.com s=km1
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  2. from (unnamed) by kmta-mta-blue-….servers.clovesoftware.com with SMTP

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