The Mimecast Synchronization Engine is a proprietary Mimecast application installed in your environment. It enables features that provide closer integration between your Microsoft infrastructure and the Mimecast cloud.
Publisher’s description
What is Mimecast Synchronization Engine?
Mimecast Synchronization Engine by Mimecast is proprietary Windows software.
Installation and requirements
The publisher provides EXE (NSIS) installers for 32-bit Windows. The main installer is 6.0 MB. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 4.5.0.562, released on October 21, 2026. The version history goes back to February 9, 2026: 3 releases, all linked to the official files. The last update is less than a month old.
Pros / Cons
Pros
- Documented silent install
- Updated in the last two months
- Small download (6.0 MB)
Cons
- Proprietary licence: check the terms and price
- No native ARM64 build
- 32-bit only
- Installation needs administrator rights
In short: Mimecast Synchronization Engine is a Windows tool for 32-bit PCs. Administrators can deploy it unattended.
Is Mimecast Synchronization Engine safe to download?
- The file is served by mimecastsupport.zendesk.com; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
B7811AC124E96AE3A90475D58C236F30977E50D09A12E8228137C7DA87F3FFBE· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 4.5.0.562Latest | October 21, 2026 | 6.0 MB | 32-bit ZIP |
| 4.5.0.526 | July 30, 2026 | — | 32-bit ZIP |
| 4.5.0.525 | February 9, 2026 | — | 32-bit ZIP |
Install from the command line
Silent install ›winget install --id Mimecast.MimecastSynchronizationEngine -esetup.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Mimecast
- Licence
- Proprietary
- Price
- See the publisher’s site
- Requires
- Windows 11 / 10
- Architecture
- 32-bit
- Installer
- EXE (NSIS)
- Version
- 4.5.0.562
- Released
- October 21, 2026
- Added to the catalogue
- February 9, 2026
- Versions listed
- 3
- winget ID
- Mimecast.MimecastSynchronizationEngine
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is Mimecast Synchronization Engine free?
Mimecast Synchronization Engine is proprietary (closed-source) software (licence: Proprietary). Whether it costs money depends on the edition: check the publisher’s site for prices and free tiers.
Is Mimecast Synchronization Engine safe to download?
The download comes from mimecastsupport.zendesk.com; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Mimecast Synchronization Engine with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Mimecast Synchronization Engine be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Mimecast Synchronization Engine run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 32-bit version through emulation.
Where can I download an older version of Mimecast Synchronization Engine?
The versions page lists all 3 versions with links to their official installer files, back to February 9, 2026.