问题报错 ： The IMAP extension is missing from your PHP installation
一看就是缺少php扩展
解决办法：
CentOS / RedHat / Fedora
yum install php-imap
Debian / Ubuntu
apt-get install php-imap
Mailwizz安装报错 The IMAP extension is missing from your PHP installation
mailwizz邮箱技术支持