AuthSMTP Usage Statistics

AuthSMTP is an authenticated SMTP mail service designed to solve most of the problems experienced when sending mail from your email program, application, server, cell phone or mobile device.

Email Hosting Providers

AuthSMTP Customers

Get access to data on 25,998 websites that are AuthSMTP Customers. We know of 15,823 live websites using AuthSMTP and an additional 10,175 sites that used AuthSMTP historically and 7,265 websites in the United States.

AuthSMTP Awards