41–50 characters 55–75 characters 10–20 characters 75–100 characters Download HubSpot Email Marketing Certification Exam Answers (PDF)
Opt-in, opt-out, and neutral Neutral, opt-in, and confirmed opt-in Opt-out, opt-in, and GDPR opt-out There are only two. Download HubSpot Email Marketing Certification Exam Answers (PDF)
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