An email validator or email checker is a tool that checks if an email address is valid, active, and capable of receiving messages. It goes beyond a simple syntax check (like [email protected]) by verifying the domain’s existence, checking its mail servers (MX records), and attempting to communicate with the server to see if the specific user mailbox exists.
Sending emails to invalid addresses results in hard bounces. High bounce rates severely damage your sender reputation, telling ISPs that your list is low-quality.
A clean email list with low bounces leads to better engagement and a stronger sender score. This is the key to achieving high deliverability and landing in the inbox.
Don’t waste money sending marketing campaigns to non-existent users. A validated list ensures your message reaches real people, leading to better metrics and higher returns.
Spam traps are email addresses used by ISPs to identify spammers. Sending to one can get you blacklisted instantly. Validation services can often identify and flag these traps.
The email address is valid, connected to a real mailbox, and is safe to send to. This is the ideal status for contacts on your list.
The server is configured to accept email for any address at the domain. It’s impossible to know if the specific mailbox exists, so these can have higher bounce rates.
The email address is invalid, the domain doesn’t exist, or the mail server is offline. These addresses should be removed from your list immediately.
The email address is from a temporary email provider. These are often used for one-time sign-ups and have very low long-term value or engagement.