Re: Refuse mail from hosts with closed port 25

[Jim Reid]

> On 16 Sep 2019, at 14:17, Paul van der Vlis <p...@vandervlis.nl> wrote:
> 
>> A significant number of installations will use different servers for
>> inbound and outbound email.
> 
> I know a provider what is actually using this. I guess only the big
> providers will have different servers for inbound and outbound email,

Guess again. Hint: you might be mistaken.

> and you can make a list of them.

Guess again. Hint: you might be mistaken.