Ubuntu 24.04.2 LTSのLinuxサーバー上にPostfixとDovecotを導入し、SSSDを介してActive Directoryドメイン(test.local)と連携したメールサーバーを構築。 ローカルユーザーのドメインはmailserver.test.local、ADユーザーのドメインはtest.localとして区別し、PostfixとDovecotの設定を調整。

旧さくらVPS→新さくらVPSに移行するにあたり、Redmine本体もアップグレードしてデータだけ元の環境から持ってこようとした際の作業備忘録です。 Nginx + Unicorn + MariaDB + Postfixでの動作を想定。 前提としては、GitとかNginxが入っている以外はほぼデフォルト状態 ...

I'm trying to setup a Postfix server, but I can't seem to get the mailboxes configured correctly. Every time I try to test sending an email using telnet, I see errors in the Postfix logs.

Note: Removing Postfix from the system will also purge any configuration in /etc/postfix. If you want to preserve it, make a backup before applying the above play.

This work provides starting guide for simple Postfix mail server configuration. Then I configured the Postfix mail server to support Anti-Spam and Anti-Virus, using two methods. • Method 1: With ...

Although this article provides instructions on setting up an integrated mail server using Postfix, OpenLDAP and Courier-IMAP, it does not discuss how these software components were chosen, which could ...

This work provides starting guide for simple Postfix mail server configuration. Then I configured the Postfix mail server to support Anti-Spam and Anti-Virus, using two methods. - Method 1: With ...

The server suddenly (just this afternoon) started refusing external email because our Barracuda is allegedly listed in zen.spamhaus.com (though checking the IP on the ...