MailCraft (UCS Care Group)
Clone of Outlook
Free clean-room mail, calendar and contacts program with Outlook's layout, for Microsoft 365, Outlook.com and other mail accounts.

Image: MailCraft (UCS Care Group)
What works the same as Outlook
- Outlook's layout: side rail, folder pane, ribbon, message list and reading pane.
- Flags, colour categories, rules, conversations and search.
- Calendar with day, work-week, week and month views, meetings and recurring events.
- Signs in to Outlook.com and Microsoft 365 on Microsoft's own page.
- Also runs in a browser tab.
What is missing
- It's a public beta: much of what a daily mail program needs is still to come.
- Other interoperability limits are listed in docs/gaps.md.
- The browser version only reads mail from a few kinds of servers; you bring other mail in from files.
How to get started
- Click Download. It opens the project's releases page.
- On Windows, run the .msi installer; on a Mac, open the disk image; on Linux, pick the AppImage, .deb, .rpm or Flatpak.
- The builds aren't signed yet, so Windows and macOS ask before running them.
- Try it first with the sample mailbox, or add your own account.
Compatible files
Outlook projects Not tested yet




