Re: gmail and hotmail blocking mail sent from my IP

[Walter Alejandro Iglesias]

On Sun, Aug 06, 2017 at 06:02:25PM +0200, Jesper Wallin wrote:
> Like Martijn pointed out, you're sending mail from a IP which is not
> intended for mail-servers.

This was my main question.  What is an "IP intended for mail-servers"?