Global Outgoing SMTP Email Service

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.


Our systems are custom designed / built for reliability and performance when processing and delivering very high volumes of email. We use high performance and redundant systems to help ensure we can provide the highest levels of availability.

Flexible Pricing

AuthSMTP accounts start from as little as $61 / £50 / €57 per year for up to 2000 messages per month and you can upgrade your account instantly via our Control Panel. For full details see our Pricing Calculator.

Responsive Support

We provide an online Control Panel plus email and web based support backed by knowledgeable support staff on hand to provide help if required.


We have over 20 years experience providing email services and getting emails delivered quickly and accurately to your recipients.


We understand security is important to our customers - we provide a number of security features including SSL options when sending SMTP email.

Instant Setup

Accounts are created instantly when you sign up so with our setup guides you can start sending email within minutes.

Not sure? We offer a money back guarantee on all new accounts.