Video tutorials

How to read the email verification results

Verifying your emails is just the first part of cleaning your email list.


In order to view the verification details of your email list, first log in to your MailerCheck account.

There, you will be able to see all the email lists that have been cleaned and verified. 

Note: If you are logging in for the first time, you will not able to see any lists yet. In this case, just click the "Verify new list" button to upload and clean an email list.

Once you can see your uploaded email lists, click on View details on the specific list you’d like to analyze. 

On the email-list page you previously selected, you can view how many email addresses belong to a specific category or status. 

You can click the Select all button to download the selected list and upload it to your email service provider. However, we recommend that you just select the email addresses that show a Valid status.

You will also notice that there are email addresses that display different statuses with different color labels. Here is what each specific status means:

  • Valid: Email is safe to send.

  • Catch-all: Recipient's mail server will accept emails to this address, but we cannot guarantee this email address belongs to a person.

  • Unknown: We are unable to determine if the email is valid or not valid. Use caution when sending.

  • Mailbox full: Recipient’s inbox is full and may not be able to receive new emails. Use caution when sending.

  • Mailbox not found: Recipient’s inbox does not exist. Do not send.

  • Syntax error: Email is not valid. Do not send.

  • Typo: Email address has a typo. Correct email address and retest.

  • Disposables: These email addresses should be removed from your lists. These are temporary email addresses people use to avoid getting spam in their inbox.