Should I remove inactive subscribers or just stop emailing them?
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Stop emailing first. Always. That's step one and it's non-negotiable for protecting your sender reputation.
Whether you delete them or just suppress them is a different question and depends on your business needs and legal obligations. Suppressing means they stay in your database (good for compliance and history) but you never send to them again. Deleting removes them entirely. If they never re-engage after you give them a chance, suppression is the safest move for most senders.
The order matters: send a re-engagement campaign first. Whoever responds stays active. Whoever ignores it gets suppressed. This two-step filter keeps your list healthy without losing data unnecessarily. Your next move is deciding your suppression policy right now so you're not scrambling later.
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