--- title: "Why Should You Use Spam Filter Relay Services? Understanding The Advantages! | DuoCircle" description: "Join the thousands of organizations that use DuoCircle Find out how affordable it is for your organization today and be pleasantly surprised.Interested in" image: "https://www.duocircle.com/images/og-default.png" canonical: "https://www.duocircle.com/content/cloud-based-spam-filter/spam-filter-relay/" --- Content # Why Should You Use Spam Filter Relay Services? Understanding The Advantages! Join the thousands of organizations that use DuoCircle Find out how affordable it is for your organization today and be pleasantly surprised.Interested in [ Talk to an Expert → ](/contact/) [ See what we make ](/products/) ## Why Should You Use Spam Filter Relay Services? Understanding The Advantages! [Spam Filtering - Sign Up](/email/spam-filtering) _A spam relay means sending an email to the destination with the support of a third-party server or proxy server_. It is for hiding the address of the source of the mail sender. It is widely used by cybercriminals who wish to target users and steal their confidential information without letting their credentials known. When an email server or SMTP is employed, it is known as an “open relay” or SMTP relay. _The spammers used open relays in the past when SMTP servers were not locked down_. Nowadays, most spam relays run through proxy servers and botnets. Thus, outbound and [inbound spam filtering](/content/cloud-based-spam-filter/inbound-spam-filtering), using **spam filter relay** become necessary, especially in the enterprise environment. ![reliable smtp server](https://media.mailhop.org/duocircle/images/2019/02/email-phishing-protection.png) ### Why Choose Spam Filter Relay Services? 1. **Perfect Solution:** [Spam filtering solutions](/content/cloud-based-spam-filter/spam-filtering-solutions) are an ideal answer to **prevent spam attacks**. It has emerged as the most comprehensive and practical tool that prevents the long download and virus-infected email messages from entering the user’s inbox. 2. **Transparent Email Cleaner:** Both cloud-based spam filters and [on-premise services](https://www.netsec.news/cloud-based-spam-filtering/) enable the users to take control of the process. They can even specify particular addresses from which they do not wish to receive any email. ### Perks Offered To Enterprises by Spam Filter Relay Service Vendors After going through the [enterprise spam filter reviews and ratings](/content/cloud-based-spam-filter/enterprise-spam-filter-reviews-and-ratings), an organization looks for added benefits before choosing a service. Given below are a couple of perks offered by the vendors: 1. **Attractive Packages:** One can avail **spam filtering services** in many attractive packages. Some services provide immediate activation of the account and are free of cost, while others require a one-time payment for lifetime access. 2. **Devoted Technical Staff:** They provide technical support and 24/7 monitoring with every package. The [cloud-based spam filter](/content/cloud-based-spam-filter) comes with a free trial for the product, as well. ![smtp smart host service](https://media.mailhop.org/duocircle/images/2019/02/fake-email-delivery-failed.png) ##### Join the thousands of organizations that use DuoCircle --- Find out how affordable it is for your organization today and be pleasantly surprised. [Spam Filtering - Sign Up](/email/spam-filtering)Interested in our Partner Program for MSPs and VARs? Visit Our [MSP Partner Program](/msp-partner-program). ## Ready to talk? Same-day response from someone technical. We tell you yes or no quickly. If yes, we get to work. 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