Hi Klaviyo Team,
We have a question regarding the difference between two segments in Klaviyo, as we noticed that the customer counts between them are not the same, and we would like to better understand the underlying logic.
The two segments are:
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If someone can receive email marketing

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Person has subscribed to email marketing at least once over all time

Our understanding is that both segments are related to email subscription status, but we are not sure how Klaviyo technically defines and evaluates these two conditions.
Specifically, we would like to confirm:
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What exact criteria are used for “can receive email marketing”?
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Does this only check the current email consent status (e.g. subscribed, not suppressed, not bounced), or does it also depend on historical subscription behavior?
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For “has subscribed to email marketing at least once over all time”, does this include profiles who:
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Previously subscribed but later unsubscribed?
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Are currently suppressed, bounced, or marked as non-emailable?
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Is this difference caused due to “double opt-in”?
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Is it expected that the profile count in these two segments would be different? If so, could you explain the most common reasons that cause the difference?
Thank you very much for your support, and we look forward to your clarification.
Best regards











