--- title: "The DuoCircle Services Explained" description: "If you never needed to purchase spam filtering services before, some of the names and service descriptions can be quite cryptic." image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/blog/support-issues/duocircle-service-need/" --- Quick Answer DuoCircle services map to four common needs. If you have a mail server and need spam filtering, use the Email Gateway. If you have a mail server with its own spam filtering and need a backup in case it goes offline, use the Backup MX service. If you have a domain but no mail server and want incoming mail forwarded to another account, use the Email Forwarding service. If you have a mail server or desktop client and are having trouble sending mail to the internet, use the Outbound SMTP service. Share [ ](https://www.linkedin.com/sharing/share-offsite/?url=undefined%2Fblog%2Fsupport-issues%2Fduocircle-service-need%2F "Share on LinkedIn") [ ](https://twitter.com/intent/tweet?text=The%20DuoCircle%20Services%20Explained&url=undefined%2Fblog%2Fsupport-issues%2Fduocircle-service-need%2F "Share on X/Twitter") [ ](https://www.facebook.com/sharer/sharer.php?u=undefined%2Fblog%2Fsupport-issues%2Fduocircle-service-need%2F "Share on Facebook") [ ](https://reddit.com/submit?url=undefined%2Fblog%2Fsupport-issues%2Fduocircle-service-need%2F&title=The%20DuoCircle%20Services%20Explained "Share on Reddit") [ ](mailto:?subject=The%20DuoCircle%20Services%20Explained&body=Check out this article: undefined%2Fblog%2Fsupport-issues%2Fduocircle-service-need%2F "Share via Email") ![Duocircle services](https://media.mailhop.org/duocircle/images/2016/03/SPF-record-checker-3492.jpg) If you never needed to purchase spam filtering services before, some of the names and service descriptions can be quite cryptic. Here is a very quick guide that describes the typical use cases that people have and the product that may work best in these circumstances. If you have a mail server that you **want spam filtering** for, the [Email Gateway](/email/spam-filtering) product is what you need - If you have a mail server that ALREADY has spam filtering, but you **want it backed up** if it goes down, take a look at the [Backup MX service](/email/email-backup-mx/). [![Email Forwarding Service](https://media.mailhop.org/duocircle/images/2016/03/spf-record-check-3492.jpg)](https://media.mailhop.org/duocircle/images/2016/03/spf-record-check-3492.jpg) If you have a DOMAIN, and NO mail server but want **mail forwarded to another account**. Then the [email forwarding service](/email/email-forwarding/) may solve your problems. If you have a mail server or a desktop email client and are having problems **SENDING mail to the Internet** from the server. You’ll want to use our [Outbound SMTP service](/email/outbound-smtp/). [![contact our support department](https://media.mailhop.org/duocircle/images/2016/03/sender-policy-framework-6173.jpg)](https://media.mailhop.org/duocircle/images/2016/03/sender-policy-framework-6173.jpg) I hope this information helps to clarify the services and what they do. If not please feel free to [contact our support department.](/contact/) ![Brad Slavin](https://media.mailhop.org/dmarcreport/images/team/brad-slavin.jpg) Brad Slavin General Manager General Manager at DuoCircle. Product strategy and commercial lead across the email security portfolio. ## Secure your email infrastructure Protect, authenticate, and deliver. Contact our team to find the right solution. [Contact Sales](/contact/) [Explore Products](/products/) ## Related Articles [ support-issues 2m Announcing 24/7 Phone Support Aug 15, 2015 ](/blog/support-issues/announcing-247-phone-support/)[ support-issues 1m DuoCircle Increases Support Coverage Jun 1, 2015 ](/blog/support-issues/duocircle-increases-support-coverage/)[ support-issues 4m DuoCircle Infrastructure Overview Feb 18, 2015 ](/blog/support-issues/duocircle-infrastructure-overview-2/)[ support-issues 2m Increasing Transparency on the DuoCircle Status Page Dec 28, 2015 ](/blog/support-issues/increasing-transparency-duocircle-status-page/) ```json {"@context":"https://schema.org","@type":"Organization","name":"DuoCircle LLC","url":"https://www.duocircle.com","logo":{"@type":"ImageObject","url":"https://www.duocircle.com/images/duocircle-logo.png"},"description":"DuoCircle is a portfolio of specialized email products covering protection, authentication, delivery, and routing. 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