DOTS Email Validation 3 (EV3) is a web service that provides validity and metadata information about an email address. The service provides common data elements such as syntax validity along with more refined data such as SMTP failures and deliverability flags. 

EV3 can help provide instant email data verification to websites or enhancement to contact lists.

If you are an existing client and are using the previous version of this service then please click on the following link.

DOTS Email Validation 2

Overview of How it Works

Developer Guide Map

Integration Basics

Important Note!
SOAP is done via POST, only with special XML markup in the post-body.