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. ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> <https://www.linkedin.com/company/intelligent-computing-solutions> <https://twitter.com/ICSIL> <http://www.midwest-ix.com/> Midwest Internet Exchange <https://www.facebook.com/mdwestix> <https://www.linkedin.com/company/midwest-internet-exchange> <https://twitter.com/mdwestix> <http://www.thebrotherswisp.com/> The Brothers WISP <https://www.facebook.com/thebrotherswisp> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> _____ 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