Check whether or not an email is valid with the most accurate and secure email verifier.
Trusted and used by 1,000s of forward-thinking teams in 170+ countries.
Quickly verify multiple email lists en masse.
Get in-depth results for entire email lists. Upload from your computer, copy & paste, or connect an integration.
Fully automate your email list cleaning.
Never have a dirty list again. Put your list cleaning on autopilot and let Monitor do the work, automatically.
Integrate with our Email Verification API.
Filter invalid email addresses directly on your website, landing pages, or in your application.
What our customers say
Don’t take our word for it. Here’s what our customers think.