https://jeroendev.one/tags/directadmin/ Recent content in DirectAdmin on JEROENDEV Hugo 0.125.1 en <a href="https://creativecommons.org/licenses/by-nc/4.0/" target="_blank" rel="noopener">CC BY-NC 4.0</a> Sun, 02 Apr 2023 00:00:00 +0000 https://jeroendev.one/posts/directadmin-configure-to-use-mail-relay-for-specific-domains/ Sun, 02 Apr 2023 00:00:00 +0000 https://jeroendev.one/posts/directadmin-configure-to-use-mail-relay-for-specific-domains/ I discovered my server was on a blacklist from Microsoft, probably because of the provider. I couldn&rsquo;t get it whitelisted as fast as I would, so I configured an SMTP relay for these specific domains. The error message from Exim: F=&lt;***@domain.com&gt; R=lookuphost T=remote_smtp H=hotmail-com.olc.protection.outlook.com [104.47.14.33] X=TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256 CV=yes: SMTP error from remote mail server after pipelined MAIL FROM:&lt;***@domain.com&gt; SIZE=165698: 550 5.7.1 Unfortunately, messages from [XX.XX.XX.XXX] weren&#39;t sent. Please contact your Internet service provider since part of their network is on our block list (S3140).