Recall: Oracle

[David Woolley]

On 15/10/17 18:25, Rich Allcorn wrote:
> Once a message goes out, you cannot recall it.
> This function of trying to do this is silly.

It does work within parts of the Microsoft email ecosystem, but that 
email system will also generate a recall message to, at least, tell 
other users that a recall was attempted.  Surprisingly there seems to be 
no header that would allow a remote MS system to correlate it with the 
original.

(Actually, even with MS Exchange, for some reason nearly all recalls 
seemed to fail.)