OOF Manager is a lightweight Windows desktop tool that manages your Microsoft 365 mailbox's
Out-of-Office (Automatic Reply) state for you. Sign in once, configure your weekly work hours
and reply text, and OOF Manager auto-toggles your OOF on/off at the schedule boundaries.
It also pushes the next off-hours window to Exchange as a Scheduled OOF, so the server keeps
switching auto-replies even when this app is closed.
Publisher’s description
What is OOF Manager?
OOF Manager by tisun2 is open-source Windows software. It is written in PowerShell.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit Windows. It can be installed for the current user only, without administrator rights. It needs Windows 10 or newer. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 1.1.22, released on October 21, 2026. The version history goes back to May 7, 2026: 21 releases, all linked to the official files. The last update is less than a month old.
Popularity and file types
The source code on GitHub (tisun2/OofManager) has 1 stars.
Project description on GitHub: “Out-of-Office (Auto-Reply) manager for Microsoft 365 / Exchange Online (WPF / .NET Framework 4.8)”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: OOF Manager is an open-source Windows tool for 64-bit PCs. Administrators can deploy it unattended.
Is OOF Manager 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:
51F85905360F4AB42605B5B89BBBB0644329629102998B3624A86CFB462360E6· 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
Recent versions
All 21 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.1.22Latest | October 21, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.21 | October 21, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.20 | August 19, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.19 | August 5, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.18 | July 28, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.17 | July 3, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.15 | July 1, 2026 | — | 64-bit EXE (Inno Setup) |
| 1.1.14 | June 23, 2026 | — | 64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id tisun2.OofManager -eOofManagerSetup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTARTRelated guide: How to use winget: install and update apps
Information
- Publisher
- tisun2
- Licence
- MIT
- Price
- Free
- Source code
- github.com/tisun2/OofManager
- Written in
- PowerShell
- Requires
- Windows 11 / 10 (Windows 10+)
- Architecture
- 64-bit
- Installer
- EXE (Inno Setup)
- Version
- 1.1.22
- Released
- October 21, 2026
- Added to the catalogue
- May 7, 2026
- Versions listed
- 21
- GitHub stars
- 1
- Website
- github.com
- winget ID
- tisun2.OofManager
Ratings and reviews
No reviews yet. Be the first to rate it.
Frequently asked questions
Is OOF Manager free?
Yes. OOF Manager is open-source software under the MIT licence.
Is OOF Manager 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 OOF Manager 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 OOF Manager be installed silently?
Yes. The silent install page lists the exact command for each installer.
Which Windows versions does OOF Manager support?
The installer requires Windows 10 or newer and is available for 64-bit.
Does OOF Manager run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of OOF Manager?
The versions page lists all 21 versions with links to their official installer files, back to May 7, 2026.
Can I use OOF Manager without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.