When a potential subscriber requests to be on your email list via online sign-up box, a confirmation email message is sent by Benchmark Email to this address. The subscriber must click a link to become an active subscriber. This verifies that only the true owner of the entered email addresses can confirm that they indeed want your email campaigns.

Confirmed opt in (also called double opt-in) subscribers are far less likely to report your campaigns as spam/abuse. This helps to ensure a higher deliverability for all your email campaigns.