--- title: "Understanding Email Gateway Definition For Beefing Up Organizational Security | 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/email-gateway/email-gateway-definition/" --- Content # Understanding Email Gateway Definition For Beefing Up Organizational Security 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/) ## Understanding Email Gateway Definition For Beefing Up Organizational Security [Fix Your SPF Errors Now](/content/spf-permerror) A simple [email gateway](/content/email-gateway) definition for the layman would be that it is a machine that acts as a connection between multiple networks. _It helps in the execution of the communication protocols along with active constraints that use a similar protocol between several systems_. Thus for connecting two networks, the most straightforward mail gateway is used with the same kind of protocol or the mailer constraints. Therefore, the messages passing through the **email gateway are encrypted**, especially the outgoing mails, and the incoming emails, decrypted. ![email gateway](https://media.mailhop.org/duocircle/images/2020/07/email-filtering-services.png) ### Here’s How Email Gateway Works As A Robust Security System For The Incoming And Outgoing Emails Going by the [secure email gateway definition](/content/email-gateway/secure-email-gateway-definition), _it is evident that the gateway reduces the number of threats for the user credentials_, sensitive data of the organization, email hosts, etc. Additionally; - It offers a practical and robust framework of the technologies that protect the threats that are carried away by email. - It acts as an active firewall for the email of the users, by scanning the inbound and the outbound email for the severe malicious content. - The **secure email gateway** prevents all the malicious contents of the mail from reaching the targeted user or the intended recipients. - Some secure gateways also offer capabilities for **data loss prevention**. _They thwart intentional or inadvertent [leakage of sensitive information](https://www.bostoncomputing.net/consultation/databackup/dataloss/) via an email message_. These are some of the ways [how email gateway works](/content/email-gateway/how-email-gateway-works) ### Steps Involved In Setting Up An Email Gateway Free Service - The gateways that get set up in the server of an organization analyze the emails for threats. - The incoming emails get decrypted by the protocols of the email gateway. - The outgoing **emails are encrypted** so that they can get scanned for the malicious contents of the email, malware, and viruses. (Note: The service of [free email gateway](/content/email-gateway/email-gateway-free) also varies from one type of gateway to the other.) - Apart from the decryption and encryption technique, there are different types of email filters too. _Since secure email gateways monitor network traffic, they filter email messages before they reach users’ inboxes_. ![email gateway free](https://media.mailhop.org/duocircle/images/2020/07/cloud-spam-filtering.png)![email gateway](https://media.mailhop.org/duocircle/images/2020/07/email-spam-filtering-service-1.png) ### Some Hosting Email Gateway Examples For entry-level enterprises, it can be quite challenging to choose how to set-up the **perfect email gateway** infrastructure for their business. Here are some [email gateway examples](/content/email-gateway/email-gateway-example): - On-site hardware appliance - On-site virtual appliance - A public cloud - A hybrid approach – combining on-site presence with public cloud Going by the **Email Gateway definition**, _they can significantly help all types of enterprises to boost their security_. They go beyond the traditional detection capabilities of legacy **anti-phishing** and antivirus tools and offer more sophisticated detection and prevention capabilities. Additionally, to stay up to date with the latest threats, they make use of [threat intelligence](https://www.cisecurity.org/blog/what-is-cyber-threat-intelligence/). Thus, _it is a prudent choice for organizations to choose an email gateway which suits their requirement_. ##### Join the thousands of organizations that use DuoCircle --- Find out how affordable it is for your organization today and be pleasantly surprised. [Outbound SMTP - Sign Up FREE](/email/outbound-smtp)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. [Talk to an Expert→](/contact/)[See what we make](/products/) ```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. We deliver about 90% of category-leader capability at roughly half the price, backed by experts who own the outcome. 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