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Email Marketing Glossary.

Clear, no-fluff definitions of every email marketing term that matters—from open rates to double opt-in. 

 

List Hygiene

Email list hygiene is the ongoing practice of removing invalid, bouncing, and unengaged contacts from your list to keep it healthy and protect your deliverability.

Also known as: list cleaning, list scrubbing, email hygiene

Lists decay naturally — people change jobs, abandon inboxes, or simply lose interest. List hygiene is the routine maintenance that keeps a decaying list from quietly wrecking your deliverability.

What does list hygiene involve?

Removing hard bounces, suppressing long-inactive subscribers, correcting or validating addresses, and honoring unsubscribes promptly. Many senders run a win-back flow before removing the inactive.

Why does list hygiene matter?

Mailbox providers judge you on engagement. A list full of dead addresses and non-openers drags down your sender reputation and can push even your good mail to spam.

How often should you clean your list?

Continuously for bounces, and on a regular schedule (e.g., quarterly) for inactive subscribers. Drip's free Email List Health Calculator can help you gauge your list's condition.

Related terms

Email List Lead Magnet List Segmentation Subscriber Opt-In Form Double Opt-In

Related reading from Drip

The 5-Step Email Scrubbing Framework You Should Follow How to Get Your Email List Squeaky Clean

Frequently asked questions

What is email list hygiene?
Email list hygiene is the ongoing practice of removing invalid, bouncing, and unengaged contacts from your list. Keeping your list clean protects your sender reputation and deliverability.
What does list hygiene involve?
Removing hard bounces, suppressing long-inactive subscribers, validating or correcting addresses, and honoring unsubscribes promptly. Many senders run a re-engagement or win-back flow before removing inactive contacts.
Why is list hygiene important?
Mailbox providers judge senders on engagement. A list full of dead addresses and non-openers lowers your sender reputation and can route even your legitimate emails to spam. Clean lists deliver better.
How often should I clean my email list?
Remove hard bounces continuously, and review inactive subscribers on a regular schedule such as quarterly. Run a win-back campaign first, then suppress those who don't re-engage.
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