Email list hygiene for all of us.

The all-in-one threat detection and email validation service that’s trusted by the world’s most respected brands.

Email List Cleaner

 

Over 9 billion emails checked.

Customer Since 2012
Customer Since 2017
Customer Since 2019
Customer Since 2021

 

Know at a glance what’s safe—and what’s not.

Safe to send
Valid and confirmed addresses with low threat levels.

Send with caution
​Role-based and catch-all addresses, seeds, and more.

Do not send
Malicious contacts, bots, invalid addresses, or worse.
You’ll get all the nitty-gritty details too, learn more.

 


Email hygiene done right.

Eliminate bad addresses and identify valid contacts.

Threat Removal

Removes bots, seeds, zombies, malicious contacts, and more.

Contact Validation

Performs multiple checks to ensure that your contact’s identity is valid.  

Deliverability Detection

Returns “Plain English” insights into the mailability of your contacts.

 

 

Lower your risk, and your blood pressure.

Amazingly Fast
Complete list hygiene in minutes.

Friendly Support
Experts available by phone, email, or chat.

Completely Compliant
Built to be GDPR compliant from the get-go. 

 

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       A world-class email list hygiene service from tried-and-true email geeks.
Andrew Bonar
Founder, emailexpert
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       AlfredKnows is the winner…it outperforms in price, performance, and useability.
Chris Donald
CEO, InboxArmy

 

 

Resources to give you the inside track.

Looking to get ahead? We have expert guidance, timely resources, and helpful documentation. Learn More

 

See how it all comes together!

No matter if you’re new to email list hygiene or have a well-established process, you’ll love AlfredKnows.

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