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Email Gateway

Reliable Cloud Based Spam Filtering For Your Entire Company

Spam filtering your mail and have it delivered instantly to your mail server. Custom SMTP ports are supported.

DuoCircle provides you much greater control and protection over your email communication with a flexible interface for email management. Get setup in minutes!

As a leader in email delivery, we provide spam filtering to customers all over the globe. We have data centers on multiple continents and utilize the best in class data centers for all of our services.  With our cloud based Email Gateway, you can run your own mail server in your office or use a Cloud Based provider while we filter and sanitize your mail with our commercial grade spam filtering engine. Our high performance network is specifically designed to minimize delays and deliver only clean mail to your users inbox, a typical messages spends less than 4 seconds in our network before being successfully delivered to your mail server.

If for any reason your mail server is offline when we attempt delivery our Email Gateway service will behave like a Backup MX and wait for your mail server to come back online. The DuoCircle Email Gateway incorporates the features that you’d expect in an Enterprise Grade Spam Filtering solution at a fraction of the cost.


Best Value


$34month - Incl. 20 Users
Addl. $1 /user


$60month - Incl. 10 Users
Addl. $5 /user
*coming soon

Works with On-Premises and Hosted Email Systems

Whether you manage your own mail server such as Microsoft Exchange or use a hosted service like Office 365.