Hi.
One of our clients was expecting an email, but the server rejected it for the following reason:
2019-12-30 10:16:02 SPFCheck: 1.2.3.4 is not allowed to send mail from mailserver.tld: Please see http://www.open-spf.org/Why?id=recepient%40mailserver.tld&ip=1.2.3.4&receiver=our.server.tld ...
Hi.
I've spent about 2 hours trying to figure this out already.
I got this email from directadmin:
> A new message or response with subject:
>
> Warning: 100 non-existant E-Mails have just been sent by some address.
>
> has arrived for you to view.
> Follow this link to view it:
>
>...