What is the definition of graymail?
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Correct answer: Emails sent to contacts that have provided consent but have stopped engaging.
Why this is the answer
Graymail refers to marketing email sent to contacts who gave permission but are no longer engaging. In HubSpot, graymail suppression helps protect sending health by excluding unengaged contacts from marketing email sends. These contacts are not the same as spam recipients because they previously had a valid relationship or subscription. Continuing to email unengaged contacts can weaken engagement signals and harm deliverability over time.
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