AuthSMTP is the outgoing SMTP email service for your e-commerce website, mailing list or email application on most current computers and mobile devices. With instant setup, a money back guarantee and very low cost starter accounts you can test and start sending email in minutes with no risk.
Get the Cloud Email Buyer's Guide and find out what your peers are saying about AuthSMTP, Amazon WorkMail, SendGrid and more!
As of February 2026, the mindshare of AuthSMTP in the Cloud Email category
stands at 2.6%, up from 2.5% compared to the previous year, according to calculations based on PeerSpot user engagement data.
