diff --git a/en_US/cloud/cloud-changelog.md b/en_US/cloud/cloud-changelog.md
index d73cd0d0..d5621bd0 100644
--- a/en_US/cloud/cloud-changelog.md
+++ b/en_US/cloud/cloud-changelog.md
@@ -1,6 +1,6 @@
 # Release Notes of iRedMail Cloud Platform
 
-## Changes in upcoming release (20181201)
+## Upcoming release (20181201)
 
 * Add rc script and firewall rule for ipv6 on Debian/Ubuntu:
     - /etc/init.d/ip6tables
diff --git a/en_US/iredadmin/0-iredadmin-pro.restful.api-new.md b/en_US/iredadmin/0-iredadmin-pro.restful.api-new.md
index e4f5ce23..3ec322fc 100644
--- a/en_US/iredadmin/0-iredadmin-pro.restful.api-new.md
+++ b/en_US/iredadmin/0-iredadmin-pro.restful.api-new.md
@@ -311,6 +311,7 @@ Notes:
     `quota` | Mailbox quota (in MB) | `quota=1024`
     `mailboxFormat` | Mailbox format. e.g. `maildir`, `mdbox`. Defaults to `maildir` if not present. For more details, please read Dovecot document: <https://wiki2.dovecot.org/MailboxFormat>. __WARNING__: Changing mailbox format does not migrate the mailbox on file system automatically, you have to migrate it manually. New email will be stored in new mailbox format immediately. | `mailboxFormat=mdbox`
     `mailboxFolder` | Mailbox folder name (case sensitive) which will be appended to user's home path. Defaults to `Maildir`. It's useful if you need to migrate to different mailbox folder. __WARNING__: New email will be stored in new mailbox folder immediately. | `mailboxFolder=Maildir`
+    `maildir` | Absolute path of the mailbox. All characters will be converted to lower cases. | `maildir=/var/vmail/vmail1/example.com/username`
 
     </div>
 
@@ -342,6 +343,7 @@ Notes:
     `removeService` | Add new per-user enabled mail service(s). Multiple values must be separated by comma. Conflicts with parameter `services`. See additional notes below. | `removeService=forward,senderbcc`
     `mailboxFormat` | Mailbox format. e.g. `maildir`, `mdbox`. Defaults to `maildir` if not present. For more details, please read Dovecot document: <https://wiki2.dovecot.org/MailboxFormat>. __WARNING__: Changing mailbox format does not migrate the mailbox on file system automatically, you have to migrate it manually. New email will be stored in new mailbox format immediately. | `mailboxFormat=mdbox`
     `mailboxFolder` | Mailbox folder name (case sensitive) which will be appended to user's home path. Defaults to `Maildir`. It's useful if you need to migrate to different mailbox folder. __WARNING__: New email will be stored in new mailbox folder immediately. | `mailboxFolder=Maildir`
+    `maildir` | Absolute path of the mailbox. All characters will be converted to lower cases. | `maildir=/var/vmail/vmail1/example.com/username`
 
     !!! attention
     
diff --git a/html/cloud-changelog.html b/html/cloud-changelog.html
index b4528e80..9a5c0cf3 100644
--- a/html/cloud-changelog.html
+++ b/html/cloud-changelog.html
@@ -16,7 +16,7 @@
         <span>iRedMail</span>
     </a>
     &nbsp;&nbsp;//&nbsp;&nbsp;<a href="./index.html">Document Index</a></div><h1 id="release-notes-of-iredmail-cloud-platform">Release Notes of iRedMail Cloud Platform</h1>
-<h2 id="changes-in-upcoming-release-20181201">Changes in upcoming release (20181201)</h2>
+<h2 id="upcoming-release-20181201">Upcoming release (20181201)</h2>
 <ul>
 <li>
 <p>Add rc script and firewall rule for ipv6 on Debian/Ubuntu:</p>
diff --git a/html/iredadmin-pro.restful.api-new.html b/html/iredadmin-pro.restful.api-new.html
index 5cb1fd73..c9c7c843 100644
--- a/html/iredadmin-pro.restful.api-new.html
+++ b/html/iredadmin-pro.restful.api-new.html
@@ -890,6 +890,11 @@ to be a domain admin.</p>
 <td>Mailbox folder name (case sensitive) which will be appended to user's home path. Defaults to <code>Maildir</code>. It's useful if you need to migrate to different mailbox folder. <strong>WARNING</strong>: New email will be stored in new mailbox folder immediately.</td>
 <td><code>mailboxFolder=Maildir</code></td>
 </tr>
+<tr>
+<td><code>maildir</code></td>
+<td>Absolute path of the mailbox. All characters will be converted to lower cases.</td>
+<td><code>maildir=/var/vmail/vmail1/example.com/username</code></td>
+</tr>
 </tbody>
 </table>
 </div>
@@ -1014,6 +1019,11 @@ to be a domain admin.</p>
 <td>Mailbox folder name (case sensitive) which will be appended to user's home path. Defaults to <code>Maildir</code>. It's useful if you need to migrate to different mailbox folder. <strong>WARNING</strong>: New email will be stored in new mailbox folder immediately.</td>
 <td><code>mailboxFolder=Maildir</code></td>
 </tr>
+<tr>
+<td><code>maildir</code></td>
+<td>Absolute path of the mailbox. All characters will be converted to lower cases.</td>
+<td><code>maildir=/var/vmail/vmail1/example.com/username</code></td>
+</tr>
 </tbody>
 </table>
 <div class="admonition attention">