Email addresses are validated to the level specified on this page: 

• Syntax ensures only that the email address is in the correct format. This is the fastest level of validation but will allow through the most invalid email addresses. 

• Domain ensures that the domain name (to the right of the @ sign) is valid and is configured to accept email. This is normally the best level in terms of speed and accuracy. 

• Server ensures that there is an email server currently live and ready to accept email for the domain. This will eliminate dormant domains but increases the time required to perform the validation.  
• Address ensures the mail server accepts email for the exact mailbox. This is the most precise level of validation but does have a false positive rate, especially for consumer email addresses. 

 

With Suggest Email Corrections enabled, misspelt email addresses can be corrected automatically.

Once your global settings are set up, you need to configure column by column mappings to store the validation results. Find out more here