Protect your system and enhance your outbound mail
Dale Simpson | TrustRadius Reviewer
November 30, 2018

Protect your system and enhance your outbound mail

Score 10 out of 10
Vetted Review
Verified User
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Overall Satisfaction with Mimecast Secure Email Gateway

We implemented Mimecast as an extra layer of protection in our cyber security plan. We opted to implement company-wide to ensure all departments were protected.

When we were first shown the platform we were only looking for a solution to replace our then current automatic disclaimer, however, we soon realised it was much more than this. The disclaimer option was just one feature of a security gateway platform.
  • URL Protection - Mimecast filters and checks every URL which allows a double check for malicious links. Each link is re-directed through the Mimecast platform and if it is malicious the user is prohibited from accessing it. Occasionally it will ask the user to decide whether the link is clean or not to help train user awareness. I find this very helpful in reducing downtime from false links.
  • Attachment Protection - alongside filtering URLs Mimecast also checks all attachments for malicious code and other undesirable content. If it identifies something that doesn't look right it will hold the email and notify the user. If it is an expected email, it can be released to a sandbox to verify the contents. We have found this very useful in preventing phishing attacks through malicious code sent in word documents.
  • Bounced & Rejected mail - Mimecast employs a host of different filters and rules for mail traffic. Should mail meet certain criteria it either bounces or is rejected. This can be for many reasons. Impersonation is a classical and very useful filter which rejects phishing mail from people trying to impersonate individual users. Following implementation, we have seen a vast reduction in mail purporting to be from us sent to us.
  • Held mail - this is a form of junk mail filtering. When an email is identified by Mimecast as potential junk or spam it will hold the email in the queue and send a notification email to the user allowing them to block, allow, or release. If you release the email it will allow you to receive that specific email but hold all future emails from the sender until you select allow. This has helped to dramatically reduce spam and junk email entering our system.
  • Mimecast also applies an automatic disclaimer to all outbound email. There is a lot of functionality which allows for different disclaimers to be used for different domains or departments etc. This flexibility is very useful for us as it enables us to use one system for multiple domains and departments.
  • Designing the disclaimers is a little bit difficult as it requires advanced HTML knowledge. Currently, there isn't a visual editor just a preview page which displays the HTML content. It would be very good if they could add this functionality in the future.
  • Its difficult to put a finger on a monetary return on investment when it comes to Mimecast. It saves wasted time with junk and spam mail as well as preventing malicious emails from entering our system.
Previously we have only used the default on-premise exchange that comes with SBS. This was very simple and only provided basic filtering of spam and junk mail. We weren't able to filter impersonation mail or emails with malicious code.
I would say Mimecast is well suited to most organisations - the bigger the more important. That said, even small organisations need to protect themselves and Mimecast is a fantastic offering. I can honestly vouch it is the market leader in providing a secure email gateway.