RE: EMail server gets blocked by Microsoft

[Brian Turnbow via NANOG <nanog () nanog org>]

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:

https://sendersupport.olc.protection.outlook.com/pm/troubleshooting.aspx



 -mel beckman


On Apr 27, 2021, at 6:54 AM, Dominque Roux <dominique.roux () ungleich ch<mailto: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