UK headquartered multi-national company Clearswift is the developer of the SECURE Email Gateway (SEG) as a messaging security platform. Clearswift was acquired by HelpSystems in late 2019, and is now a HelpSystems brand.
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Mimecast Advanced Email Security
Score 8.8 out of 10
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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.
The CS SEG appliances are running as virtual appliances by now. They do need not much power in the ESX environment. I recommend to use at least two peers running in a cluster. The cluster feature is working very well. The CS SEG can process a huge number of emails in a very short time frame.
Mimecast is good when you are needing a basic email security platform. It does some basic things really well, but when you start hitting some advanced needs, it lacks. Mimecast does not do a good job with BEC detection. Mimecast does spam filtering alright, but it could be much better. It really doesn't care about gmail or other external addresses. It doesn't check for age of accounts, etc.
Improvement is needed in the area of AV/Antispam update processing (internally)
Improvement is needed in the log file processing. Many log file entries are not understandable for an operator or administrator without special insider knowledge
Clearswift has recently changed the support provider. Now there are no german supporters anymore.
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.
Yes using the same administration console is good, as user that you have assigned limited functionality to the console, they are already familiar with it when you increase their functionality. The new portal does take a bit of getting used to, but i can see that it is an improvement on the old version.
When calling them you get best in the world customer services but as previously mentioned their online community and capabilities are a bit lacking. They want you to log into their portal to see updates on issues (vs. using a public facing service) and I rarely find the answers to my issues in electronic format. Their online presence is only helpful with the simplest of issues.
The Clearswift Secure Email Gateway (CS SEG) has very low license costs. A two peer cluster is enough to run a complete emailing gateway environment. Compared to the Proofpoint PPS the CS SEG does not need a management appliance. The CS SEG peers can manage the quarantine by themselves. This is easy to use and quite fast.
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
Reasonably priced solution, even for a small business like ours.
It's hard to put a figure on our ROI - I would just say we feel like we've gotten our money's worth with the advanced email protection we receive. We have definitely avoided many potentially dangerous emails since we've implemented this solution.
