← Glossary
Delivery
What is List hygiene?
Keeping a mailing list clean: removing bounces, complainers, inactive and invalid addresses.
How it works in practice
A clean list is the cheapest deliverability improvement there is. It means suppressing hard bounces and complaints immediately, verifying new addresses and retiring recipients who haven't engaged for a long time.
The common mistake
Re-importing old lists that include previously suppressed addresses.
Related terms
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