Email List Hygiene
The practice of regularly cleaning your email list by removing invalid, inactive, and unengaged subscribers.
Why It Matters
A clean list protects sender reputation, improves deliverability, and gives you accurate engagement metrics.
How It Works
You periodically remove hard bounces, unsubscribes, spam complainers, and long-term unengaged subscribers. Verification tools check addresses for validity, and sunset policies define when to remove inactive contacts.
Real-World Example
A brand removes 8,000 subscribers who haven't opened an email in 12 months, and their open rate jumps from 12% to 22%.
Common Mistakes
Never cleaning your list because the size feels important
Removing engaged subscribers due to inaccurate tracking
Related Terms
The percentage of sent emails that could not be delivered to the recipient's inbox.
A score assigned to your sending domain and IP by email providers that determines inbox placement.
The ability of your emails to successfully reach recipients' inboxes rather than spam folders or being blocked.
Email List Hygiene FAQs
How often should I clean my email list?
Review and clean your list quarterly, with hard bounces and unsubscribes removed automatically after every send.
Should I delete unengaged subscribers?
Try a win-back campaign first, then suppress or delete subscribers who remain unengaged after 6-12 months.
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