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c# - MAPI in .NET 5?

I want to open the default email client on the computer with presetted values for from, to, subject, body and attachments.

However, MAPI32.DLL has been deprecated many years ago by Microsoft and does not work with .NET 5 64bit applications.

I allready tried many different things but I cannot come up with a solution.

What did I try?

  • mailto: (doesn't support attachments)
  • SimpleMapi (deprecated and does not work within .NET 5/Core 64bit applications)
  • Writing the mail as .eml file and open it with the default mail program

Does anybody else have an idea, how I could achive this?

The target mail client is Tobit David.


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