Compare Symantec Email vs Mimecast

See this comparison of Symantec Email vs Mimecast. Symantec Email rates 3.0/5 stars. Mimecast rates 4.8/5 stars.


Email offers emerging threat prevention, spam filtering and robust malware protection.


Mimecast blocks malware, spam and zero-day attacks.


Enterprise organizations requiring for a reliable service with a strong level of protection.


Enterprise organizations that need strong, reliable protection from spam with an integrated archiving solution.

What is Symantec Email

Symantec are a market leader in cyber security products. They are a well-known global security vendor. Their email security platform aimed businesses is a cloud based secure gateway. This means it protects email threats before they enter an email network. It provides rapid response and remediation against spear phishing, ransomware, credential theft and other advanced attacks. The core focus of this protection is on emerging threat protection, phishing defence, malware protection and spam protection.

The email security service is based upon the MessageLabs service that Symantec acquired in 2008. Symantec’s Enterprise cyber security division has been acquired by Broadcom, leading to concerns from customers and analysts about spending cuts to support and research and development for Email Security.Cloud.

Who are Mimecast?

Mimecast is one of the largest global email cyber security vendors. They have a large suite of cloud based security applications to protect organizations from email and web based security threats. Their Email Security product is aimed at enterprise level customers. It utilizes multiple detection engines to provide protection from phishing, malware, spam and zero day attacks. This platform is a Secure Email Gateway, meaning it blocks potentially dangerous emails before they enter your network.

Profile: Symantec Email

Email Security Gateway
Mountain View, CA, US
Cloud via MX Record Redirection
Starting Price:
Request Quote
Suitable For:
Enterprise, email hosting providers

Profile: Mimecast

Email Security Gateway
Boston, MA, US
Cloud, MX Record Redirection
Starting Price:
S1 = $4.00 user / month, M3R = $6.65 user / month, M3RA = $9.00 user / month
Suitable For:

Symantec Email Features:

  • Sandboxing and behaviour analysis functionality protect businesses from emerging threats such as ransomware
  • Strong phishing defence capabilities with threat isolation and impersonation controls
  • Malware and anti-spam protection with anti-virus engines and reputation based analysis
  • Symantec operates a market leading global intelligence network with information from over 175 million endpoints
  • Integrates well with other Symantec products such as data loss protection and encryption
  • Reports and analytics allow deep insights into the attacks
  • Time of click link protection helps stop sophisticated attack campaigns
  • Provides sandbox testing of attachments to protect against malware and ransomware

Expert Insight:

Symantec offer a email security solution aimed primarily a mid-sized to larger organisations. It offers organisations a good level of protection against phishing attacks, spam and malware and new emerging threats. The platform is powered by a huge intelligence network which ensures that protection is up to date and relevant for new threats. However, despite the generally high level of threat protection offered by Symantec, this solution does not compare well to other email gateway products. There have not been many new features added, and the service has stagnated compared to smaller vendors such as Barracuda, who have more innovative solutions and are more heavily focused on email security for business.

Symantec offer a reliable, robust platform. It’s not the easiest to learn or deploy, but it does offer a high level of threat protection. Large businesses who are looking to implement a reliable service that works, could consider shortlisting Symantec. However, more innovative and specialized platforms are available for email security. The recent acquisition of Symantec raises questions about the future R&D in the product.

Mimecast Features:

  • Impersonation Protection blocks phishing attempts and spam
  • Popular email service, with high levels of customer satisfaction
  • High – level threat protection features including attachment sandboxing and URL protection
  • Large threat database monitoring billions of emails ensures that threat protection is up to date
  • Robust spam filtering, with guaranteed 99% spam rate detection
  • Comprehensive real time reports over your email network, including all inbound and outbound traffic
  • Self-service tools for end users, such as allowing them to block senders
  • Fully featured but easy to administer service, offering a web based dashboard from which all policies are managed
  • Email Continuity available if the email network goes down, with 100% service availability SLA
  • Includes an Email Archiving option, as well as secure messaging and large file sending

Expert Insight

Mimecast offers a market leading Email Security platform. This platform works as a secure gateway, meaning that it blocks threats before they enter an email network. This is a very robust service, which offers a range of advanced features that will help businesses to secure themselves against email threats. This is platform offers strong protection against malware, spam and zero-day attacks. It offers real time malware defence and attachment sandboxing. Spam filtering is strong, with Mimecast offering an SLA on 99% of spam blocked. Mimecast offers a range of logs to give you real time visibility over your email network. With this platform administrators have fine-grade control over all levels of email security. End users also get controls to block senders, helping to reduce the burden on IT. Email Archiving, and Continuity and Large File Sending can be purchased as add-ons.

This platform is very popular among customers, with high levels of customer satisfaction and retention. The service is expensive and so is more suitable for larger enterprises who need the strongest level of email protection. However, the adage of ‘you get what you pay for’ rings true with Mimecast Email Security, as it is one of the strongest, fully featured email security platforms available. Organizations with a big security budget, looking for the strongest protection they can get, should consider this service.

Should you consider leaving Symantec Email Security.Cloud (MessageLabs)?

Many customers of Symantec Email Security.Cloud will be nervous about Broadcom’s acquisition. Should you consider moving to an alternative solution? Read More

Email Security Guide for Business

Download a comprehensive guide to Email Security for Business. Discover the different email security technologies, how they work and what the best option is for your organization.