Solid E-mail security when you dont want to rely on just Miscrosofts build in E-mail security
February 04, 2026

Solid E-mail security when you dont want to rely on just Miscrosofts build in E-mail security

Michael van Alderwegen | TrustRadius Reviewer
Score 8 out of 10
Vetted Review
Verified User

Overall Satisfaction with Mimecast Advanced Email Security

We're using Mimecast Advanced Email Security as a secury E-mail Relay within our environment. It's protecting us by scanning all E-mails before they will be received on any of our E-mail servers. It's scanning on (potential) virussen, but also on Spam, Possible Phishing Emails and Email senders on blacklists. We're even let it check for SPF/DKIM/DMARC settings from the senders Domain. This has limited the amount of potential dangerous e-mails enormous!

Pros

  • Scan E-mails on Phishing, Spam and other potentials threads
  • Scan senders domains/server for correct SPF/DKIM/DMARC settings
  • Use a very easy setup with f.e. White/Blacklisting
  • Use Mimecast Advanced Email Security as SMTP account

Cons

  • A full integration with Microsofts O365 so users can more easily report potential threads and clear false positives
  • Be able to use message tracking more to dig into the E-mail to see why it's been marked as Spam / Phishing (with still keeping in mind all privacy rules)
  • Automate integrations with other tools like Sentinel One, Rapid7 etc.
  • increased email security
  • use of awareness tools
  • details logs of everything that comes in or out
I think the portal is pretty usable. The Message Tracking is pretty intuitive. Only finding the correct profile groups for allowing or blocking specific senders or rules can be a bit more difficult. Also, using Mimecast Advanced Email Security as SMTP relay is a bit difficult to find option, but very useful as you don't need a specific SMTP mailbox.
Before using Mimecast Advanced Email Security we were using Global Relay Mail archiving, which was very handy for Auditing purposes, but it hasn't got a decent Security Feature. So now we've got a better E-mail filter and security solution, which is a nice add-on to the Microsofts build in security on their E-mail platform.
Yes, as mentioned before we've got a better E-mail filter and security experience that we had before.

Do you think Mimecast Advanced Email Security delivers good value for the price?

Yes

Are you happy with Mimecast Advanced Email Security's feature set?

Yes

Did Mimecast Advanced Email Security live up to sales and marketing promises?

I wasn't involved with the selection/purchase process

Did implementation of Mimecast Advanced Email Security go as expected?

Yes

Would you buy Mimecast Advanced Email Security again?

Yes

Mimecast Advanced Email Security has lots of features which are very
useable by IT departments. Scanning E-mails on potential Threads, checks
on background from send and more. The Message Tracking is working very
good and it's pretty easy allow E_mails that were blocked first. The
SPF/DKIM/DMARC checks are very usefull and allows us to inform the
sender if somethings not fully correct.

Mimecast Advanced Email Security Feature Ratings

Secure Email Gateway
8.0
Anti-malware
8
Customizability
7
Data Loss Protection
Not Rated
Threat Detection
9
Sandboxing
Not Rated
End-to-End Encryption
9
Management Tools
7

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