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> From: "Shibu N.V" <nvshibuse@gmail.com>
> Date: Fri, 4 Sep 2020 13:18:35 +0530
>
> Platform :windows 10
> Emacs version: 27.1 (Packaged binaries downloaded from GNU FTP Server)
> Emacs invoked without init files using: ./emacs -Q
>
> Even an empty org file generates the message:  (Shell command succeeded with no output).

Do you have a movemail.exe program outside the installed Emacs tree?
IOW, how many movemail.exe programs do you have on PATH, and where did
those programs come from?

The only program that I see Org invokes when visiting an Org file is
'movemail', and that isn't supposed to cause the message you see, so I
don't think this issue is related to the problem you see.  I think at
this time this should be reported to Org developers, so that they
investigate what could have prevented display of the file on its first
visiting.