
急遽Webメール環境が必要となり、併せてIMAPサーバも必要になったため、Dovecotのインストールを行いました。
Dovecotの設定だけでなく、Postfix側でも連携するための設定が必要だったため、メモ記事となります。
また、本記事は既にPostfixでメール送受信ができるようになっていることを前提としております。ご注意下さい。
Dovecotのインストール
dnf install dovecot Last metadata expiration check: 0:39:00 ago on Sat 21 Dec 2024 05:49:49 PM JST. Dependencies resolved. ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: dovecot x86_64 1:2.3.16-6.el8_10 appstream 5.2 M Installing dependencies: clucene-core x86_64 2.3.3.4-31.20130812.e8e3d20git.el8 appstream 598 k Transaction Summary ================================================================================ Install 2 Packages Total download size: 5.8 M Installed size: 20 M Is this ok [y/N]:y Downloading Packages: (1/2): clucene-core-2.3.3.4-31.20130812.e8e3d20 2.4 MB/s | 598 kB 00:00 (2/2): dovecot-2.3.16-6.el8_10.x86_64.rpm 7.7 MB/s | 5.2 MB 00:00 -------------------------------------------------------------------------------- Total 4.4 MB/s | 5.8 MB 00:01 Running transaction check Transaction check succeeded. Running transaction test Transaction test succeeded. Running transaction Preparing : 1/1 Installing : clucene-core-2.3.3.4-31.20130812.e8e3d20git.el8.x86_ 1/2 Running scriptlet: dovecot-1:2.3.16-6.el8_10.x86_64 2/2 Installing : dovecot-1:2.3.16-6.el8_10.x86_64 2/2 Running scriptlet: dovecot-1:2.3.16-6.el8_10.x86_64 2/2 Verifying : clucene-core-2.3.3.4-31.20130812.e8e3d20git.el8.x86_ 1/2 Verifying : dovecot-1:2.3.16-6.el8_10.x86_64 2/2 Installed: clucene-core-2.3.3.4-31.20130812.e8e3d20git.el8.x86_64 dovecot-1:2.3.16-6.el8_10.x86_64 Complete!
Dovecotサービスを自動起動するよう設定します。
systemctl enable dovecot
Dovecotの設定
プロトコルの指定
view /etc/dovecot/dovecot.conf (途中省略) protocols = imap pop3 (途中省略)
平文認証の有効化
view /etc/dovecot/conf.d/10-auth.conf (途中省略) disable_plaintext_auth = no (途中省略) auth_mechanisms = plain login (途中省略)
メール保存先の指定
view /etc/dovecot/conf.d/10-mail.conf (途中省略) mail_location = maildir:~/Maildir (途中省略)
PostfixでSMTP-AUTHを行うための設定
# Postfix smtp-auth unix_listener /var/spool/postfix/private/auth { mode = 0666 user = postfix group = postfix }
Dovecotの起動
systemctl start dovecot
ss -an (途中省略) tcp LISTEN 0 100 0.0.0.0:110 0.0.0.0:* tcp LISTEN 0 100 0.0.0.0:143 0.0.0.0:* (途中省略)
Postfixの設定
view /etc/postfix/main.cf (途中省略) inet_interfaces = all (途中省略) mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain (途中省略) local_recipient_maps = unix:passwd.byname $alias_maps (途中省略) home_mailbox = Maildir/ (途中省略) smtpd_banner = $myhostname ESMTP (途中省略) smtpd_sasl_auth_enable = yes smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth broken_sasl_auth_clients = yes smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
Postfixの設定確認
postfix check
Postfixの再起動
systemctl stop postfix systemctl start postfix
以上です。お疲れ様でした!