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Most will fail this test.

The 4-part supplement test:

Based SupplementsTuesday, Sep 22, 2026 at 11:01 AM EasternKlaviyo
Based SupplementsMost will fail this test.
Subject
Most will fail this test.
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The 4-part supplement test:
From
support@basedshilajit.com
Sent
Tue Sep 22, 2026, 11:01 AM ET
Sent to
Colombia (basedsupplements.co), basedsupplements.com
Size
15 KB
Images
1
Links
3, 2 of them buttons
Subject length
25 characters

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Sent in its busiest hour, 11 AM, which holds 28% of its emails. The subject is 25 characters; its average is 32.

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