RE: EMail server gets blocked by Microsoft

2021-04-28 Thread Jean St-Laurent via NANOG
: 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 <h

Re: EMail server gets blocked by Microsoft

2021-04-28 Thread Mike Hammett
t Exchange The Brothers WISP - Original Message - From: "Michael Fallen" To: "Dominque Roux" 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 offende

Re: EMail server gets blocked by Microsoft

2021-04-28 Thread Jim Popovitch via NANOG
On Wed, 2021-04-28 at 09:30 +0200, Markus wrote: > Am 27.04.2021 um 16:46 schrieb Brian Turnbow via NANOG: > > Hi Dominque, > > > > And sign up for snds > > > > https://sendersupport.olc.protection.outlook.com/snds/index.aspx > >

Re: EMail server gets blocked by Microsoft

2021-04-28 Thread Markus
Am 27.04.2021 um 16:46 schrieb Brian Turnbow via NANOG: 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 rep

Re: EMail server gets blocked by Microsoft

2021-04-27 Thread Richard
> Date: Tuesday, April 27, 2021 09:35:35 +0200 > From: Dominque Roux > > 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 wonderi

Re: EMail server gets blocked by Microsoft

2021-04-27 Thread Michael Fallen
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 2021-0

RE: EMail server gets blocked by Microsoft

2021-04-27 Thread yasuo
Hi Dominuque, If you mean "Microsoft 365" mail servers, your mail server is quite possibly listed frequently on Spamhaus' blocklists. https://www.spamhaus.org/ Check back with Spamhaus on your reputation to find out what you can do. Cheers, 跡部 靖夫 (ATOBE, Yasuo) ya...@atobe.com -Original Me

RE: EMail server gets blocked by Microsoft

2021-04-27 Thread Brian Turnbow via 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

Re: EMail server gets blocked by Microsoft

2021-04-27 Thread Mel Beckman
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, Domin