Re: "Tagging is not supported." message - what causes it?

[Tim Chase]

On 2017-11-02 21:05, Chris Green wrote:
>     Status: RO
> 
> Is it that "Status: RO"?  If so what/who put it there?

despite looking like it means "read only", that's a combination of
the "Read" (you've read the message) and "Old" flags.

-tkc