Help! Can't subscribe kernel mail list

[Greg KH]

On Wed, Jan 10, 2018 at 08:37:42AM +0000, Douglas Su wrote:
>     vger.kernel.org gave this error:
>     Hello [40.92.4.67], for your MAIL FROM address <d... at outlook.com> policy analysis reported: Your address is not liked source for email.
> 
> I searched Mail list FAQ, but still have no idea. It seems that the vger.kernel.org mail server banned my mail address.

That is exactly what happened, look at the response it gave you.  You
need to use a better email server other than outlook.com, sorry.

good luck!

greg k-h