从 imap_getacl 获取 ACL 后，您希望在任何邮箱文件夹上为用户设置它们，方法如下
foreach ( $Folders as $key => $Maildir ) {
imap_setacl($domains , "user/john.doe/".$Maildir , $userid, "lrswipkxte");
}
您可以使用以下形式来翻译 ACL（感谢 cyradm 手册）
switch ($right) {
case "read" : $aclstring = "lrs";
break;
case "post" : $aclstring = "lrsp";
break;
case "append" : $aclstring = "lrsip";
break;
case "write" : $aclstring = "lrswipkxte";
break;
case "delete" : $aclstring = "lrxte";
break;
case "all" : $aclstring = "lrswipkxte";
break;
case "admin" : $aclstring = "lrswipkxtea";
break;
case "none" : $aclstring = "";
break;
}
