I just unlocked ddostest.me with this tool for outlook.com, Hotmail.com, msn.com and maybe all the O365 suite.
It was fix in less than 24 hours.
Thanks for the tip
Jean
From: NANOG <nanog-bounces+jean=ddostest.me@nanog.org> On Behalf Of Mike Hammett
Sent: April 28, 2021 7:52 AM
To: Michael Fallen <mikefallensignup@gmail.com>
Cc: nanog@nanog.org
Subject: Re: EMail server gets blocked by Microsoft
Neither Microsoft nor Google have been successful at making tools that work for low-volume mailers. They seem to think that if you're not in their club, you're either a commercial email marketing firm or SPAM.
From: "Michael Fallen" <mikefallensignup@gmail.com>
To: "Dominque Roux" <dominique.roux@ungleich.ch>
Cc: nanog@nanog.org
Sent: Tuesday, April 27, 2021 9:22:29 AM
Subject: Re: EMail server gets blocked by Microsoft
Microsoft seems to be one of the worst offenders in terms of having a
email blocking blackbox. Good luck getting in contact with someone as
well. Throughout the years of self-hosting email they have always been
the most problematic of the large providers.
--
Mike
Dominque Roux wrote on 2021-04-27 3:35 AM:
> Hi All,
>
> is there anyone out there who has some experience with the blocking
> mechanism of Microsofts mail server? We're running a mail server at our
> company which ends up on their blacklist from time to time and we're
> wondering if there are some steps we could take in order to prevent this.
>
> Cheers,
> Dominique