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Mimecast Advanced Email Security

Mimecast Advanced Email Security

Overview

What is Mimecast Advanced Email Security?

The Mimecast Secure Email Gateway is a messaging security option with anti-spam / anti-malware, data loss prevention, large file send, and other features, from UK company Mimecast.

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Recent Reviews

Mimecast works well

8 out of 10
March 14, 2021
Incentivized
We use Mimecast Secure Email deployed organization-wide to manage all of our email services - it processes all incoming messages before …
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Awards

Products that are considered exceptional by their customers based on a variety of criteria win TrustRadius awards. Learn more about the types of TrustRadius awards to make the best purchase decision. More about TrustRadius Awards

Popular Features

View all 7 features
  • Threat Detection (18)
    8.2
    82%
  • Anti-malware (19)
    8.0
    80%
  • Management Tools (19)
    8.0
    80%
  • Customizability (19)
    7.4
    74%

Reviewer Pros & Cons

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Pricing

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What is Mimecast Advanced Email Security?

The Mimecast Secure Email Gateway is a messaging security option with anti-spam / anti-malware, data loss prevention, large file send, and other features, from UK company Mimecast.

Entry-level set up fee?

  • No setup fee

Offerings

  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services

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Features

Secure Email Gateway

Secure email gateway software prevents the transmission of emails that contravene company policy or contain malware, phishing attacks, spam or other unwanted emails

7.9
Avg 8.4
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Product Details

What is Mimecast Advanced Email Security?

Mimecast offers advanced email and collaboration security through two different deployment methods.

A Secure Email Gateway in the cloud, Mimecast Email Security Cloud Gateway is designed to keep any type of email environment, even the most complex, secure.

Mimecast Email Security Cloud Integrated
is an integrated cloud email security solution that does not require an MX record change, and is purpose-built to enhance and extend M365 protections.

Both solutions include AI-powered protection, include a range of specifically designed benefits, and offer a complementary suite of additional capabilities like collaboration security, awareness training, and archiving.

Mimecast Advanced Email Security Features

Secure Email Gateway Features

  • Supported: Anti-malware
  • Supported: Customizability
  • Supported: Data Loss Protection
  • Supported: Threat Detection
  • Supported: Sandboxing
  • Supported: End-to-End Encryption
  • Supported: Management Tools

Mimecast Advanced Email Security Technical Details

Deployment TypesSoftware as a Service (SaaS), Cloud, or Web-Based
Operating SystemsUnspecified
Mobile ApplicationNo
Supported CountriesGlobal

Frequently Asked Questions

The Mimecast Secure Email Gateway is a messaging security option with anti-spam / anti-malware, data loss prevention, large file send, and other features, from UK company Mimecast.

Microsoft Defender for Office 365, Abnormal Security, and Proofpoint Email Protection are common alternatives for Mimecast Advanced Email Security.

Reviewers rate End-to-End Encryption highest, with a score of 8.8.

The most common users of Mimecast Advanced Email Security are from Mid-sized Companies (51-1,000 employees).
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Comparisons

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Reviews and Ratings

(113)

Attribute Ratings

Reviews

(1-15 of 15)
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Score 9 out of 10
Vetted Review
Verified User
Mimecast Advanced Email Security provides quick and efficient spam filtering, plus additional mail delivery customisation in a traditional mail gateway form.
  • Cloud based
  • Easy to use
  • Simple for users
  • Hourly spam digests
  • Speed of sandboxing can sometimes take time
  • Directory sync to O365 only 3x per day
  • Quite a few false positives
Mimecast Advanced Email Security does an outstanding job of protecting our user inboxes. Its spam technology is great, and we truly do feel safer with this by our side. There is, of course, always area for improvement, i.e. their support team could be a little more helpful and their directory syncs more frequently.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Used to address improving our spam detection at a mail gateway level (not API driven)
  • Deliver mail
  • Reduce spam in inbox
  • Clear digest reports
  • Easy admin console for security team
  • Mail delivery speeds
  • Processing time for sandbox
  • Better support team
Well suited for organisations that plug in additional email software at an O365 level. Spam filtering is not O365 API driven like most modern tech.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
Our company uses Mimecast to secure all incoming and outgoing email, and filter out any incoming spam or malicious emails. Mail is received first by the Mimecast servers where it is thoroughly analyzed before it is delivered to our on Microsoft 365 Exchange environment. All outgoing mail is also sent through the Mimecast servers so recipients can rest assured the email is safe when it gets to them. We also make use of the stationary layouts to add a legal disclaimer to all of our outgoing mail. Mimecast has dramatically limited our end user exposure to spam, phishing attempts, and malicious emails.
  • Great spam filtering services
  • Filtering of potentially dangerous attachments
  • Link protection
  • Highly customizable
  • Less than intuitive admin console. I've found a few things to be difficult to understand and implement.
  • There are A LOT of features that can be implemented. It's hard to decipher which ones should or shouldn't be implemented.
Mimecast has been great at filtering our email for spam, phishing attempts, and potentially dangerous email attachments. We have been very happy with the reliability of the Mimecast services - I don't recall having a single service outage. My one complaint is that the admin console is not very easy to navigate, which makes some of the services difficult to implement. That being said, their support team has been great about walking us through these issues.
Score 8 out of 10
Vetted Review
Verified User
Incentivized
We use Mimecast Secure Email Gateway to control spam, block unwanted viruses, send/receive large files, send/receive secure emails and utilize it for user awareness training.
  • Provides secure email transactions.
  • Ability to send and receive very large files.
  • Blocks a large amount of unwanted spam and dangerous files.
  • Allows to train users about bad email actors.
  • Web filtering and blocking.
  • The new updated portal when released was very difficult to use.
  • The customer support via phone is not always on par.
  • Email support when used could be a bit quicker when responding.
  • CyberGraph implementation is taking too long.
  • Feature requests should not take that long to complete.
Mimecast Secure Email Gateway is well suited for very large companies that need to control spam, unwanted attachments, Etc.
I would say it would be less appropriate for smaller companies as the cost may not be a good fit.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
As our primary protection gateway for all incoming and outgoing email against current and next gen threats. Increased levels of phishing, weaponized links, attachments, nested documents and social engineering attempts make this an essential toolbox for our business.

Added to the feature-set of Large file send and additional optional addon's you really get what you pay for!
  • Anti Spam
  • Anti Phishing
  • URL Protection
  • Attachment Management
  • Anti Spoofing
  • User Awareness
  • Secure Transmission of Large or/and Sensitive Files
  • Admin Complexity is High - To Fine Tune Features you need to invest in training or high level support
  • Flexibility in delivery could be better, some solutions are on or off
  • Cost is high and inflexible when it comes to trying out new features
On an established email domain where malicious or spam email is a significant percentage it works well - but if you have admin in the background using it as a live tool assessing and fine tuning it in the background. Leaving end users to manage held mail isn't always the best solution.

Works well in terms of end user experience with the Outlook plugin ideally with SSO enabled (so they don't have to remember to keep logged into it if their pw changes). The web plugin is less detailed and feature rich.
February 28, 2020

The Benefits of Mimecast

Jessica Rondash | TrustRadius Reviewer
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Mimecast is used across our whole organization. It serves as our email archiving system as well as our spam filter. It is also a great tool for catching phishing emails before they get to our end users. Mimecast also allows us to send large files, basically serving as a dropbox but cutting out the step of uploading the files.
  • Catches spam and phishing emails
  • Saves and archives all emails for the designated period
  • Sends large files that are too big for Outlook to handle
  • It has a great search feature for finding old emails.
  • Phishing scams are getting more and more sophisticated so it could always improve on catching phishing emails.
Mimecast Secure Email Gateway is great for searching for previous emails. It allows you to get very granular and create a very specific search to easily find the email you are looking for. It also makes it easy to save all emails, without having to go through an archiving process. You can also set Mimecast to save emails for x number of years and therefore remove all emails older than that period.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Mimecast is used as the primary spam filtering software for our company. Mimecast protects our main mail services by being an intermediary between our company and the outside internet. We then go further and only permit Mimecast to send our company email directly. Furthermore email is smarthosted out of the Mimecast gateway, so our customers can be assured clean emails.
  • Anti-Spam.
  • Anti-Malware.
  • Death by details - admins can screw things up easily when it comes to advanced message routing.
  • How-to's to train users/admins on more difficult functions.
The product is best used for medium and larger businesses with more than 100 people. It's not cost-effective for less than 100 users.

It's good for any company that wants to block spam before it gets to your on-premise servers and end-users. Their anti-spam engines are amongst the best in the business. The number of customizations on sending and on-premise delivery available can be mind-boggling at first, but are incredibly powerful to get your messages to the right place.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
We use Mimecast as our mail delivery point for the entire organization. Both incoming and outgoing mail is filtered and scanned through the service. It addresses the serious issue of malicious emails entering our environment. We find that it is a much more effective solution than what it replaced, which was a third party adaptation of spam assassin.

  • Sandbox filtering of mail attachments is great, and we are alerted to caught items.
  • Greymail tagging is useful to some employees.
  • There have been issues of downtime or slow delivery, but we have not lost any mail.
  • The initial setup is a bit counter-intuitive.
If you host your own mail you really do need a solution such as this. Keeping malicious actors out of your user mailboxes is a high priority with current threat vectors. Mimecast is always highly recommended to this purpose. It may be less needed if you are on GSuite and make use of Google's filtering.
November 16, 2019

Mimecast, Great for DR.

Score 8 out of 10
Vetted Review
Verified User
Incentivized
Mimecast Secure Email Gateway is being used by our whole organization, but our end-users typically do not interact with it on a daily basis. We use Mimecast behind the scenes to scan all incoming email and filter out ones that may be considered spam or threatening. We also use it to encrypt any outgoing email. We use this in conjunction with Proofpoint to further protect our end-users from email attacks. We also utilize Mimecast for disaster recovery purposes. In the event of a disaster where we are unable to connect to our on-premise exchange server, we utilize Mimecast to allow our users to log in and see an exact 1:1 copy of their email inbox. This also allows them to send and receive an email if our exchange server is down.
  • Standing up an exact 1:1 copy of email inboxes for DR purposes.
  • Scanning any incoming email to be filtered for spam/threats.
  • Automatically encrypting all outgoing email.
  • Email filtering can be hit or miss. Will incorrectly filter out emails that will go noticed by end-users.
  • Admin web UI can be confusing and not so intuitive.
  • Inability to release incorrectly filtered messages to the end-user mailbox.
Specifically for our organization, we use Mimecast as a defense for our users. This can seem redundant because we also utilize Proofpoint to do basically the same thing. In my opinion, Proofpoint does seem to do this better, but the needs may differ from other Organizations. What I think Mimecast does really well is email backup. For DR testing purposes, we have to stand up a copy of every user's inbox ready for access at any time. Mimecast is able to handle this really well, and also allows our users to send and receive in the event of a disaster.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Mimecast's Secure Email Gateway is being used by our firm for all users to perform the following critical functions:
Filter out spam.
Detect and block emails containing dangerous malicious links and attachments.
Manage whitelisting and blacklisting senders, both on a firm-wide bases and by individual users.
Detect outgoing email with potentially dangerous content.
Cache email during production email system downtimes and then deliver it when the production system comes back online.
  • Filters spam well. About 66% of our email is rejected and never hits user Outlook Mailboxes. There are very few times when a legitimate email is blocked.
  • Catches malware-laden attachments. Mimecast catches the vast majority of these.
  • Filters and blocks dangerous links embedded in email. Mimecast blocks almost all of these.
  • The Outlook plugin is intuitive and works well.
  • Has been extremely reliable. Virtually no down time.
  • The user interface could be a little more intuitive on the admin side.
  • Sometimes response times for accessing features via the Outlook features is slow
  • Proper configuration to optimize filtering can require quite a bit of tweaking.
Mimecast is well suited for any enterprise of over 25 individuals who wish to have first-class spam and malware protection on inbound email. It is reasonably priced and straightforward to implement. It does require some attention, and I would not recommend it to anyone who does not have a technical person who can invest the time to learn the system's administration to provide for its maintenance and ongoing adjustment as threats and desires for varying system performance evolve.
Score 9 out of 10
Vetted Review
Verified User
Incentivized
We are using Mimecast to scan all inbound and outbound email for spam and malicious content for the entire organization. We're also using the secure messaging product as well.
  • Impersonation Detection - We've received a lot of fake CEO emails recently. The previous product we had had limited ability to detect this. Mimecast on the other hand can use multiple factors to help determine whether an email from outside the organization is impersonating an employee.
  • It allows you to customize rules for specific people or groups
  • It has a lot more features
  • The web interface, while powerful, can be counter intuitive to use. If you're not in there all the time and very familiar with how it works, often you will have to reach out to support to remind you how to get something done
  • The email support is just okay. I would be very frustrated if I didn't opt for the option for phone support.
When we were a smaller company we couldn't justify the cost of something like Mimecast. However, for a medium to large organization, a product like Mimecast is well suited.
Debbie Johnson | TrustRadius Reviewer
Score 7 out of 10
Vetted Review
Verified User
Incentivized
Mimecast is used by our entire organization for our business continuity plan as well as our production email security. We added the email threat management package to our original subscription in 2017. We license each user and use it in conjunction with high availability Exchange on prem and SMSMSE for antivirus.
  • Mimecast is fantastic as a spam blocker. Our users get the traditional noon day email with their "held" items for release at their discretion, but we have a small rate of failure for recognizing true spam vs. true emails.
  • It is extremely easy for the users to use, especially with the Outlook ribbon feature enabled so that they can access their held (spam) emails, allowed senders list (white list), blocked senders list (blacklist) and other features quickly.
  • We have experienced a few outages or maintenance windows internally for our on prem email system, but we have not had Mimecast unavailable for us once. It's been 100% reliable.
  • The Admin Management console is absurdly complicated. For every first time we wanted to setup we've had to call their support for assistance. Support is quick and fantastic but it's so difficult to do anything yourself. They seem to have gone out of their way to call features unique things instead of using standard language from other providers so you as an IT professional know what you're looking for to setup.
  • They have lots of KB articles, which their support will point you to. They are written on the most basic level and don't actually provide the help you need. For example, the KB page will tell you the list of options on the page... but not actually tell you what you do, why you might use them, or define their terminology.
  • Their email threat management system has several nice features. One of the features available is that it will rewrite links in emails so that users click the link and it sandboxes the link, testing it on their server space and the user sees it there. This means the actual link in the email gets changed to the address of one of their servers. As a law firm, the EXACT LINKS are important to maintain in our communications and editing actual data from our clients to point to a Mimecast server is an unacceptable practice. I wish they had an alternative that did not edit the link itself on the page.
For companies with larger IT departments, especially someone Exchange savvy, Mimecast is a great tool that works terrific after you set it up. Administering and managing it is easy once it's up. The initial setup of any rules or functionality is overly complicated and takes great patience and lots of support time to accomplish what you want. The ability to use the Mimecast app or website during our onsite Exchange maintenance periods is terrific and it works great for business continuity.
Hans Huang | TrustRadius Reviewer
Score 9 out of 10
Vetted Review
Verified User
Incentivized
Our entire organization uses Mimecast Secure Email Gateway; it handles all of our spam/junk email bounce/blocks as well as offers other features such as attachment threat scanning/blocking, anti-phishing measure (replaces URLs with a Mimecast URL), and DR continuity. Mimecast offers even more products and services at the perimeter but we do not use all of their features.
  • Spam/malware blocking
  • Allows you to customize rule sets for specific individuals, groups, or all staff
  • Good support and an engaging user base that offers questions and solutions to issues
  • The web portal for end users could be a bit more UI friendly
  • Getting a message to pass through the Mimecast policies can be a bit long sometimes depending on how many policies are applied
Very good for SMBs and large organizations to have an email security solution at the perimeter and also if you need a solution that can do things like archiving, legal holds and disaster recovery. These would be very useful in not just day to day operations but also in the event of a major disaster declaration.
Score 10 out of 10
Vetted Review
Verified User
Incentivized
Mimecast handles all aspects of our email for the entire organization. From a basic level it allows and blocks mail. However it also protects against aspects such as DLP (Content Examination) looking for regular expressions in your email and performing appropriate actions against the email. It also gives you options with your email such as changing email data, such as if it came in from X person, change it to look like it came in from Y person. Mimecast is extremely powerful and worth every penny.
  • Blocking Spam
  • DLP (Content Examination)
  • Blocking other malicious files
  • Customer engagement on their forums
  • Reporting - They have a few options, but are limited to what they give you (for the most part)
  • Phone support - They have access to your configuration, however do not have tools to see your screen
  • First Time Setup - At the time we set the product up it was very difficult. However after talking with their experts they have proven that they took great strides to fix this.
Email protection both from spam, viruses, and other malicious entities. They are very active in their community and take requests/ideas very seriously. I cannot think of an area where Mimecast would be less appropriate as all businesses are affected by email and the risks associated with it.
Christopher St.Amand | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User
Incentivized
Mimecast is being used across the whole organization to provide protection against spam, malware and phishing attempts. We also utilize the Attachment and URL protections to bring an added layer of security to our end users. Mimecast addressed issues that we could not have thought of in regards to Whaling and Impersonation attempts.
  • Stops spam messages based on it's vast known bad and reputation lists
  • Easy to find where a problem exists in the chain of getting an email through it's tracking area
  • Fairly easy to configure and setup with the very nicely provided guides and videos
  • We've found that the console will timeout frequently when trying to search for various things or look at different sections of the console
  • We have a hard time getting into support without waiting for at least a half hour or more
We think that any organization that is looking to have a flexible and not overly complex email gateway should consider Mimecast. It was an fairly simple cut-over and the implementation team was helpful. With that said you may find support a little lacking. You will spend a little more, however, you get what you pay for.
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