Can someone shed light on a Microsoft/Outlook block list? Our hobby server (on upcloud.com) seem to have been blocked for quite some time now.
At this time, SPF and DKIM should be correct for our outgoing messages. Is there anything to be done, apart from switching to some mail sender company instead of ourselves attempting a direct connection? 2023-11-15T08:27:37.762372+00:00 mail postfix/smtp[113710]: 7407B6274D: to=<memberaddr...@hotmail.com>, relay=hotmail-com.olc.protection.outlook.com[104.47.18.97]:25, delay=0.29, delays=0.05/0/0.21/0.03, dsn=5.7.1, status=bounced (host hotmail-com.olc.protection.outlook.com[104.47.18.97] said: 550 5.7.1 Unfortunately, messages from [SERVERIPADDRESS] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [AM6EUR05FT032.eop-eur05.prod.protection.outlook.com 2023-11-15T08:27:37.743Z 08DBE4B9C5B508E7] (in reply to MAIL FROM command)) -- /* * * Otto J. Makela <o...@iki.fi> * * * * * * * * * */ /* Phone: +358 40 765 5772, ICBM: N 60 10' E 24 55' */ /* Mail: Mechelininkatu 26 B 27, FI-00100 Helsinki */ /* * * Computers Rule 01001111 01001011 * * * * * * */ _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop