前回の「メールサーバ立てる（送信編)」のつづき

想定環境

OS: CentOS 7

メール受信用IMAPサーバ(dovecot)の構築

yum -y install dovecot

/etc/dovecot/dovecot.conf

protocols = imap pop3 lmtp
listen = *
dict {
  #quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
  #expire = sqlite:/etc/dovecot/dovecot-dict-sql.conf.ext
}
!include conf.d/*.conf
!include_try local.conf

/etc/dovecot/conf.d/10-auth.conf

disable_plaintext_auth = no
auth_mechanisms = plain login
!include auth-system.conf.ext

/etc/dovecot/conf.d/10-mail.conf

mail_location = maildir:~/Maildir
namespace inbox {
  inbox = yes
}
first_valid_uid = 1000
mbox_write_locks = fcntl

/etc/dovecot/conf.d/10-master.conf

service imap-login {
  inet_listener imap {
  }
  inet_listener imaps {
  }
}
service pop3-login {
  inet_listener pop3 {
  }
  inet_listener pop3s {
  }
}
service lmtp {
  unix_listener lmtp {
  }
}

service imap {
}
service pop3 {
}
service auth {
  unix_listener auth-userdb {
  }

  unix_listener /var/spool/postfix/private/auth {
    mode = 0666
    user = postfix
    group = postfix
  }
}
service auth-worker {
}

service dict {
  unix_listener dict {
  }
}

/etc/dovecot/conf.d/10-ssl.conf

ssl = no
ssl_cert = </etc/pki/dovecot/certs/dovecot.pem
ssl_key = </etc/pki/dovecot/private/dovecot.pem

サービスの自動起動設定・起動

systemctl restart dovecot && systemctl enable dovecot