Secure Your Email

    Email Security Is Cybersecurity


    Best-in-class email security, total deployment flexibility

    • Protect against all email attacks, from phishing and ransomware to business email compromise and payment fraud 
    • Get industry-leading efficacy delivered in the way that best meets your needs – with or without a gateway
    • Defend against the most sophisticated attacks with AI-powered detection 
    Challenges & Solutions

    Get email security solutions that are smarter, easier, faster and more proactive

    Email is the open door through which nearly all vital business communication flows — and the threat vector through which virtually all cyberattacks begin. Email security must protect organizations against all the email attacks criminals have honed — from phishing, spam, and malware to ransomware and brand impersonation. And large-scale cloud service providers, like Microsoft 365 and Google Workspace, demand the strongest possible protection for one simple reason – they’re the biggest targets.  

    Get AI-powered, best-in-class protection with Mimecast Email Security, now offered with two deployment options.  

    Email Security, Cloud Gateway is ideal for organizations that need to manage more complex email environments, including the need for customizable policies and granular controls. This solution can also be paired with Mimecast’s larger solution suite, including award-winning awareness training, products that proactively safeguard your brand and supply chain, and an unmatched portfolio of open APIs and pre-built integrations for sharing threat intelligence. 

    Email Security, Cloud Integrated deploys in minutes and is ideal for organizations that want to optimize protection for their M365 environments. An Integrated Cloud Email Security solution that doesn’t require an MX record change, it dramatically simplifies email security administration with out-of-the-box settings, an intuitive homepage that shows what has been blocked and why, and one-click remediation of threats. 

    Mimecast email protection services with Security Awareness Training

    Over 90% of security breaches can be linked back to some form of human error, often in reaction to an email. Now you can help employees make fewer mistakes. Here’s how: complement Mimecast email protection services with security awareness training designed to educate by entertaining, motivating — and becoming unforgettable.

    Mimecast has reinvented email security awareness training with as Hollywood-quality videos that demonstrate why people should need and want to get security right. Mimecast training covers a wide variety of email attack types, from ransomware to spear-phishing, as well security best practices. Behind the memorable laughs stands real science about human learning, reinforcement, and retention – and a dashboard full of actionable data for tracking progress and targeting interventions.

    And from the same dashboard, you can even deploy anti-phish tests based on attacks you’ve just encountered — in minutes, with 100% safety. To fully protect your email, you need vigilance from people as well as infrastructure — and this is how you get it.


    An all-in-one suite of email security services

    Mimecast’s Secure Email Gateway and Integrated Cloud Email Security solutions safeguard organizations against all forms of email compromise, including zero-day attacks. Both solutions use Mimecast’s best-in-class detection capabilities, including  Mimecast and third-party detection engines, continually updated threat intelligence from outside and inside your organization, and state-of-the-art AI and machine learning. The result: better prevention, faster remediation, and greater resilience.

    Mimecast’s advanced technologies protect against ransomware, phishing, spear-phishing, malware, and more. URL protection blocks malicious URLs with every click, from any device. Attachment protection safeguards against dangerous attachments – including advanced static file analysis, MS Office and PDF safe file conversion, and our powerful behavioral sandboxing. And impersonation protection defends against emails that impersonate people and brands. These capabilities are complemented by content control and data leak prevention capabilities.

    Additional services, like secure messaging that makes outbound email encryption easy, continuity that eliminates email downtime, and business-class large file sharing can further enhance security and resilience. Best of all, everything’s easy to deploy and manage.

    Ensure email security by protecting against outside threats

    Don’t just react fast to email attacks: identify, block and remove criminals’ email and web domains and infrastructure before they attack your employees, partners or customers.

    Mimecast’s DMARC Analyzer makes it easier to stop email impersonation based on domain spoofing and deter fraudulent attacks that steal your good name. Mimecast’s Brand Exploit Protect combines advanced machine learning and targeted scans to identify potential phishing attacks sooner, block compromised assets before they become live attacks and take down active attacks to quickly minimize damage. Far beyond your perimeter, your email connections are protected. So is your supply chain — and your reputation.


    Email security FAQs

    What is email security?

    Email is cybercriminals’ method of choice for entering business networks and stealing from them; email is also most organizations’ primary means of communications. Thus, email security safeguards employee communication and reduces risk with targeted threat protection, data leak prevention, and enforced email security controls. Multiple layers of email security protection are required to stop known and emerging email-borne threats before they reach your organization’s environment.

    How secure is email?

    Email is only as secure as organizations make it. Any IT department can spin up an email server, assign email addresses, and then let things run unchecked for users until there is a problem. Realistically, however, in today’s world of ever-increasing cyberattacks, securing email must be a top priority for every organization. Most cyberattacks arrive via email. This means that not only does the IT department need to be on guard, but every single user in the organization must be trained to look out for the threats that will arrive via their inbox. With the right set of integrated security tools and the right training, organizations can stop most email-based attacks before they ever launch. Email security takes time and takes effort, but it is not an impossibility with the right set of integrated tools and security awareness training.

    Why is email security important?

    Organizations are seeing a massive rise in cyberattacks. Legitimate business emails can contain the sensitive information cybercriminals need in order to access and exploit critical business systems. Phishing emails can give cybercriminals instant access to an organization’s entire network in just one click. Even with proper email security training, data breaches can still occur. Organizations need cloud-based email solutions that offer encryption, targeted threat protection, data leak prevention, and enforced email security controls.

    What are email security best practices?

    Organizations that need to strengthen their email security should start by taking the risks posed by cybercriminals very seriously. Organizations of all sizes across the world are being targeted daily by email-based attacks. These organizations need to start by building cyberthreat awareness across their entire organization, not just in their IT department. Much of this can be accomplished through cyber awareness training programs. Organizations also need to do the research necessary to truly understand the specific threats they are facing, including conducting a complete audit of their current security tools. Once the organization understands where they stand, they need to move forward with implementing security policies, enabling encryption at every endpoint, using threat intelligence to stay secure, and continually testing their ability to stop and recover from various types of cyberattacks. Organizations also need to govern user behavior for tools, devices, and repositories, as well as tighten password policies and account access. Lastly, organizations need to look toward the latest advancements in technology, such as tools that use AI to recognize and share cyberattack information across their entire integrated security stack.

    What should organizations look for when evaluating email security companies?

    Organizations need an email security solution that stops malware, spam, and advanced threats using targeted threat protection, data leak prevention, and enforced email security controls. While team members should always be trained in proper email security, solutions need to be automated, cloud-based, and offer encryption. Email security solutions should work in the background and not impede user productivity. When evaluating email security companies, organizations need to find an email security partner with the right tools to prevent, detect, and respond quickly to phishing attacks and other email-based threats.
    Related Products

    Protect against email-based threats with advanced technical capabilities

    Phishing, spam, business email compromise, malicious URLs, ransomware - these attacks continue to plague businesses. Explore Mimecast's features that protect against these ubiquitous threats.

    Email Security Cloud Integrated

    Get complete M365 protection that deploys in minutes and is optimized out of the box with this Integrated Cloud Email Security solution that requires no MX record change.


    Email Security Cloud Gateway

    Secure any type of email environment, even the most complex email environments and get highly customizable controls with this Secure Email Gateway in the cloud.

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