Re: FTR outlook.com has blacklisted my mailserver

Oops, that sounds like something Microsoft should solve.

Off topic, what does AP servers do when someone is sending a reply to a 
user who blocks the sender? Just do nothing?

On 22/05/2023 18:45, Jan Wildeboer wrote:
> It only seems to affect saschanaz@outlook.com <mailto:saschanaz@outlook.com> and the error message doesn’t really give me a hint on how to resolve this. The IP address of my mail server hasn’t changed in years and works everywhere else, so I apologise to saschanaz and would be grateful to learn about any hints on how to get this block resolved.
>
> Jan
>
> Remote-MTA: dns; outlook-com.olc.protection.outlook.com
> Diagnostic-Code: smtp; 550 5.7.1 Unfortunately, messages from [51.38.32.100]
>     weren't sent. Please contact your Internet service provider since part of
>     their network is on our block list (S3140). You can also refer your
>     provider to http://mail.live.com/mail/troubleshooting.aspx#errors.
>     [AM6EUR05FT021.eop-eur05.prod.protection.outlook.com
>     2023-05-22T16:10:53.947Z 08DB59F810DB0376]
>

Received on Monday, 22 May 2023 16:53:36 UTC