The tech support was fast, responsive and accurate. They responded like decent people. Impressive.

The ability to validate email address so they don't bounced.

How does the software reduce the amount of spam? Well the most important feature why we went for this software is the detection for disposable e-mails. We suffered genuinely from e-mail registrations on our site with these fake disposable e-mails. This software detects these e-mails so we only keep the real genuine e-mails for sales purposes. Other feature I like is the detection for duplicate e-mails, which sadly happens from time to time that we send out the same e-mail two times to some unlucky clients. To be more professional, this software helps us point these flaws.