Provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.
Publisher’s description
What is MFCMapi?
MFCMapi is an open-source email client program for Windows from Microsoft Corporation. It ranks 8th by popularity among email clients in this catalogue. It is written in C++.
Installation and requirements
Official installers exist for 64-bit and 32-bit as Portable. It runs without installation (portable).
Updates and version history
The current version is 26.0.26291.01, released on October 19, 2026. 6 versions are listed since April 9, 2024, each with links to its own installer files. That is about 2.4 releases a year. The last update is less than a month old.
Popularity and file types
The Chocolatey package has been downloaded 5,683 times. The source code on GitHub (microsoft/mfcmapi) has 984 stars. Similar programs include Tuta Mail, Mailspring and Proton Mail Bridge.
Project description on GitHub: “MFCMAPI”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
- Updated in the last two months
Cons
- No native ARM64 build
In short: MFCMapi is an open-source email client tool for 64-bit and 32-bit PCs.
Is MFCMapi safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
78BA7AA8922B25DEA265D81F3B46A0E62181C26E7D156C7ED31711AF760E9B03· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Security practices (OpenSSF Scorecard)
Automated checks of the microsoft/mfcmapi repository on GitHub by the Open Source Security Foundation, last run on October 24, 2026.
- No dangerous workflows10
- Restricted token permissions10
- Code review10
- Actively maintained10
- Security policy10
- No binaries in the repository10
- Dependency update tool10
- Pinned dependencies10
- No known vulnerabilities10
- Fuzzing10
- Licence declared10
- Static code analysis10
- Tests in CI10
- Branch protection8
- Contributors from several organisations6
- OpenSSF Best Practices badge5
- Signed releases0
The score rates how the project is developed and released, not whether the program is safe to install. scorecard.dev
Recent versions
All 6 versions ›6 versions over 3 years · about 2.4 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 26.0.26291.01Latest | October 19, 2026 | — | 32-bit ZIP64-bit ZIP |
| 26.0.26170.02 | June 19, 2026 | — | 32-bit ZIP64-bit ZIP |
| 26.0.26111.02 | April 22, 2026 | — | 64-bit ZIP32-bit ZIP |
| 25.0.25267.02 | September 24, 2025 | — | 64-bit ZIP32-bit ZIP |
| 24.0.24362.01 | December 27, 2024 | — | 64-bit ZIP32-bit ZIP |
| 24.0.24100.06 | April 9, 2024 | — | 32-bit ZIP64-bit ZIP |
Install from the command line
Silent install ›winget install --id Microsoft.MFCMapi -echoco install MFCMapi -yProgram files (.exe): mfcmapi.exe
Related guide: How to use winget: install and update apps
Information
- Publisher
- Microsoft Corporation
- Category
- Email clients
- Licence
- MIT
- Price
- Free
- Source code
- github.com/microsoft/mfcmapi
- Written in
- C++
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, 32-bit
- Installer
- Portable
- Version
- 26.0.26291.01
- Released
- October 19, 2026
- Added to the catalogue
- May 3, 2024
- Versions listed
- 6
- Updates / year
- 2.4
- Chocolatey downloads
- 5,683
- GitHub stars
- 984
- GitHub forks
- 170
- Website
- github.com
- winget ID
- Microsoft.MFCMapi
- Chocolatey package
- MFCMapi
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to MFCMapi
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Frequently asked questions
Is MFCMapi free?
Yes. MFCMapi is open-source software under the MIT licence.
Is MFCMapi safe to download?
The download comes from github.com, which belongs to the publisher; 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 MFCMapi 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.
Does MFCMapi run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit and 32-bit version through emulation.
Where can I download an older version of MFCMapi?
The versions page lists all 6 versions with links to their official installer files, back to April 9, 2024.
Can I use MFCMapi without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to MFCMapi?
Tuta Mail, Mailspring, Proton Mail Bridge, eM Client and Claws Mail. The alternatives page compares them.
