What does Email Security mean?

Email security refers to the collective measures used to secure the access and content of an email account or service. It allows an individual or organization to protect the overall access to one or more email addresses/accounts.

An email service provider implements email security to secure subscriber email accounts and data from hackers – at rest and in transit.

Email security gateways secure organizations by preventing malicious emails from reaching their destinations. They generally do this by blocking inbound and outbound emails that contain malicious content – such as malware, spam and phishing attacks. Some email security gateways are also able to detect and block the transmission of confidential data, such as credit card numbers, Social Security numbers, and healthcare records.

Here are the top 5 vendors to watch out for in Email security market:


Mimecast Secure Email Gateway uses multi-layered detection engines and intelligence to safeguard email data and employees from malware, spam, phishing, and targeted attacks. Mimecast email security appliance is deployed in the cloud.


Cisco is also a frontrunner aimed at midsize to large organizations, however, it’s also great for small businesses. Cisco is a popular choice for its easy to use management interface and scale-ability. It’s a highly reliable choice for targeted attack protection. There are three deployment options available: managed appliances, virtual appliances, and hardware appliances. Their latest improvement has been including DMARC support in their Email Security Appliance (ESA). As well as URL reporting and adding a safe “unsubscribe” email header in their bulk email classification.


Microsoft joins us on this list as Exchange Online Protection (EOP). Microsoft made big gains for targeted phishing protection, bringing them back to the top of market leaders in the Gartner Magic Quadrant report. One of the key benefits that makes them unique is their Office 365 message encryption. Single sign-on features and advanced threat protection make attachment sandboxing with detailed reporting. Another highly secure and reasonably priced email security choice.


Proofpoint Email Protection stops malware and non-malware threats such as impostor email (also known as business email compromise, or BEC). Deployed as a cloud service or on-premises, it provides granular filtering to control bulk “graymail” and other unwanted emails and business continuity capabilities keep email communications flowing, even when organizations email server fails.


Symantec™ Email Security.cloud filters unwanted messages and protects users from targeted attacks. The service has self-learning capabilities and Symantec intelligence to deliver highly effective and accurate email security. Encryption and data loss prevention help you control sensitive data. It supports Microsoft Office 365, Google Apps, on-premises or hosted Microsoft Exchange, and other mailbox services, delivering always-on, inbound and outbound messaging security.

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