Hi Dominque,
And sign up for snds
https://sendersupport.olc.protection.outlook.com/snds/index.aspx
It will give you the status of your IPs and you can get jenkmail reports etc.
Brian
From: NANOG <nanog-bounces+b.turnbow=twt.it@nanog.org>
On Behalf Of Mel Beckman
Sent: Tuesday, April 27, 2021 4:19 PM
To: Dominque Roux <dominique.roux@ungleich.ch>
Cc: nanog@nanog.org
Subject: Re: EMail server gets blocked by Microsoft
Dominque,
Have you read this Microsoft guidance on email servers? It covers the most common problems, such as missing SPF records, incorrect or missing IN-ADDR DNS, etc:
-mel beckman
On Apr 27, 2021, at 6:54 AM, Dominque Roux <dominique.roux@ungleich.ch> wrote:
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