mailbox to maildir

 1. 安裝 mb2md 套件

     #dnf install mb2md

2. 建立 maildir 目錄並修改權限

    #mkdir /var/spool/maildir
    #chown root.mail /var/spool/maildir
    #chmod 775 /var/spool/maildir

3. 修改 postfix 設定 vi /etc/postfix/main.cf

    home_mailbox = Maildir/
   mailbox_command = /usr/bin/procmail -a "$EXTENSION" DEFAULT=/var/spool/maildir/$USER/ MAILDIR=/var/spool/maildir/$USER

4. 修改 dovecot 設定 vi /etc/dovecot.conf

    mail_location = maildir:/var/spool/maildir/%u

5. 停止 mail service

    #systemctl stop postfix
    #systemctl stop dovecot

6. 寫一個 script 執行

#!/bin/sh

set -x

MAILBOX_DIR="/var/spool/mail"

MAILDIR_DIR="/var/spool/maildir"

[ -d $MAILDIR_DIR ] || mkdir -p $MAILDIR_DIR

cd $MAILBOX_DIR

for user in *; do

        mb2md -s $MAILBOX_DIR/$user -d $MAILDIR_DIR/$user

        chown -R $user.mail $MAILDIR_DIR/$user/
done

7. 啟動郵件服務

    #systemctl start postfix
    #systemctl start dovecot