diff --git a/html/sogo.bb10.html b/html/sogo.bb10.html
index b0c5d13e..b022142c 100644
--- a/html/sogo.bb10.html
+++ b/html/sogo.bb10.html
@@ -12,12 +12,19 @@
         // <a href="./index.html">Document Index</a>
     </div><h1 id="setup-blackberry-10-os-microsoft-exchange-activesync">Setup BlackBerry 10 OS (Microsoft Exchange ActiveSync)</h1>
 <blockquote>
-<p>Requirements:</p>
+<p>Important note:</p>
+<ul>
+<li>iRedMail-0.9.0 doesn't integrate <a href="http://www.openchange.org">OpenChange</a> and
+  <a href="http://www.samba.org">Samba4</a>, so SOGo groupware in iRedMail can NOT
+  provide full support for Microsoft Outlook clients.</li>
+</ul>
+</blockquote>
+<h2 id="requirements">Requirements</h2>
 <ul>
 <li>iRedMail-0.9.0 or later releases is required.</li>
 <li>You must choose to install SOGo groupware during iRedMail installation.</li>
 </ul>
-</blockquote>
+<h2 id="steps">Steps</h2>
 <p>1: Open application <code>Settings</code>:</p>
 <p><img alt="" src="./images/sogo/bb10.settings.png" /></p>
 <p>2: Click <code>Accounts</code>:</p>
diff --git a/html/sogo.macosx.html b/html/sogo.macosx.html
index f93b8196..d39f2945 100644
--- a/html/sogo.macosx.html
+++ b/html/sogo.macosx.html
@@ -12,12 +12,19 @@
         // <a href="./index.html">Document Index</a>
     </div><h1 id="setup-mac-os-x-microsoft-exchange-activesync">Setup Mac OS X (Microsoft Exchange ActiveSync)</h1>
 <blockquote>
-<p>Requirements:</p>
+<p>Important note:</p>
+<ul>
+<li>iRedMail-0.9.0 doesn't integrate <a href="http://www.openchange.org">OpenChange</a> and
+  <a href="http://www.samba.org">Samba4</a>, so SOGo groupware in iRedMail can NOT
+  provide full support for Microsoft Outlook clients.</li>
+</ul>
+</blockquote>
+<h2 id="requirements">Requirements</h2>
 <ul>
 <li>iRedMail-0.9.0 or later releases is required.</li>
 <li>You must choose to install SOGo groupware during iRedMail installation.</li>
 </ul>
-</blockquote>
+<h2 id="steps">Steps</h2>
 <p>1: Open application <code>System Preferences</code>:</p>
 <p><img alt="" src="./images/sogo/mac.system.preferences.png" /></p>
 <p>2: Click <code>Internet Accounts</code>:</p>
diff --git a/html/upgrade.iredmail.0.5.1-0.6.0.html b/html/upgrade.iredmail.0.5.1-0.6.0.html
index ed7e1c40..63acd4cb 100644
--- a/html/upgrade.iredmail.0.5.1-0.6.0.html
+++ b/html/upgrade.iredmail.0.5.1-0.6.0.html
@@ -58,16 +58,17 @@
 <h2 id="general-all-backends-should-apply-these-steps">General (All backends should apply these steps)</h2>
 <h3 id="apply-hotfix-for-iredmail-051">Apply hotfix for iRedMail-0.5.1</h3>
 <ul>
-<li>[Incorrect crontab job of vmail user] (http://www.iredmail.org/forum/topic418-fixed-in-051-incorrect-crontab-job-of-vmail-user.html)</li>
+<li><a href="http://www.iredmail.org/forum/topic418-fixed-in-051-incorrect-crontab-job-of-vmail-user.html">Incorrect crontab job of vmail user</a></li>
 <li><a href="http://www.iredmail.org/forum/topic398-fixed-in-iredadmin011-not-all-arguments-converted.html">iRedAdmin-0.1.1 (shipped in iRedMail-0.5.1): not all arguments converted during string formatting</a></li>
 </ul>
 <h3 id="add-missing-mysql-table-debianubuntu-only">Add missing MySQL table (Debian/Ubuntu only)</h3>
 <p><strong>Note</strong>: This step is applicable to only Debian/Ubuntu.</p>
 <p>You should manually import another MySQL table if you are using below distributions:</p>
-<pre><code>* Debian 5
-* Ubuntu 8.04
-* Ubuntu 9.04
-</code></pre>
+<ul>
+<li>Debian 5</li>
+<li>Ubuntu 8.04</li>
+<li>Ubuntu 9.04</li>
+</ul>
 <pre><code>$ mysql -uroot -p postfixpolicyd
 mysql&gt; SOURCE /usr/share/dbconfig-common/data/postfix-policyd/upgrade/mysql/1.73-1;
 mysql&gt; GRANT SELECT,INSERT,UPDATE,DELETE ON postfixpolicyd.* TO postfix-policyd@localhost;
@@ -500,11 +501,13 @@ attribute manually now.</p>
 </ul>
 <p>Both <code>enabledService=sieve</code> and <code>enabledService=sievesecured</code> are used in
 Dovecot-1.2.x, for builtin managesieve service. <code>enabledService=internal</code> is
-used for shared IMAP folder. 'objectClass=amavisAccount' is used for
+used for shared IMAP folder. <code>objectClass=amavisAccount</code> is used for
 Amavisd-new integration, for example, per-user anti-spam settings, anti-virus
 control.</p>
-<p>Steps:
-* Download python script used to adding missing values.</p>
+<p>Steps:</p>
+<ul>
+<li>Download python script used to adding missing values.</li>
+</ul>
 <pre><code># cd /root/
 # wget http://iredmail.googlecode.com/hg/extra/update/updateLDAPValues_051_to_060.py
 </code></pre>
diff --git a/mua/sogo.bb10.md b/mua/sogo.bb10.md
index c6d737bf..ddd6438b 100644
--- a/mua/sogo.bb10.md
+++ b/mua/sogo.bb10.md
@@ -1,9 +1,17 @@
 # Setup BlackBerry 10 OS (Microsoft Exchange ActiveSync)
 
-> Requirements:
+> Important note:
 >
-> * iRedMail-0.9.0 or later releases is required.
-> * You must choose to install SOGo groupware during iRedMail installation.
+> * iRedMail-0.9.0 doesn't integrate [OpenChange](http://www.openchange.org) and
+>   [Samba4](http://www.samba.org), so SOGo groupware in iRedMail can NOT
+>   provide full support for Microsoft Outlook clients.
+
+## Requirements
+
+* iRedMail-0.9.0 or later releases is required.
+* You must choose to install SOGo groupware during iRedMail installation.
+
+## Steps
 
 1: Open application `Settings`:
 
diff --git a/mua/sogo.macosx.md b/mua/sogo.macosx.md
index 93a8a892..4ffb1291 100644
--- a/mua/sogo.macosx.md
+++ b/mua/sogo.macosx.md
@@ -1,9 +1,17 @@
 # Setup Mac OS X (Microsoft Exchange ActiveSync)
 
-> Requirements:
+> Important note:
 >
-> * iRedMail-0.9.0 or later releases is required.
-> * You must choose to install SOGo groupware during iRedMail installation.
+> * iRedMail-0.9.0 doesn't integrate [OpenChange](http://www.openchange.org) and
+>   [Samba4](http://www.samba.org), so SOGo groupware in iRedMail can NOT
+>   provide full support for Microsoft Outlook clients.
+
+## Requirements
+
+* iRedMail-0.9.0 or later releases is required.
+* You must choose to install SOGo groupware during iRedMail installation.
+
+## Steps
 
 1: Open application `System Preferences`:
 
diff --git a/upgrade/0-upgrade.iredmail.0.5.1-0.6.0.md b/upgrade/0-upgrade.iredmail.0.5.1-0.6.0.md
index 53a62903..d10b4a09 100644
--- a/upgrade/0-upgrade.iredmail.0.5.1-0.6.0.md
+++ b/upgrade/0-upgrade.iredmail.0.5.1-0.6.0.md
@@ -14,7 +14,7 @@
 
 ### Apply hotfix for iRedMail-0.5.1
 
-* [Incorrect crontab job of vmail user] (http://www.iredmail.org/forum/topic418-fixed-in-051-incorrect-crontab-job-of-vmail-user.html)
+* [Incorrect crontab job of vmail user](http://www.iredmail.org/forum/topic418-fixed-in-051-incorrect-crontab-job-of-vmail-user.html)
 * [iRedAdmin-0.1.1 (shipped in iRedMail-0.5.1): not all arguments converted during string formatting](http://www.iredmail.org/forum/topic398-fixed-in-iredadmin011-not-all-arguments-converted.html)
 
 ### Add missing MySQL table (Debian/Ubuntu only)
@@ -23,9 +23,9 @@ __Note__: This step is applicable to only Debian/Ubuntu.
 
 You should manually import another MySQL table if you are using below distributions:
 
-    * Debian 5
-    * Ubuntu 8.04
-    * Ubuntu 9.04
+* Debian 5
+* Ubuntu 8.04
+* Ubuntu 9.04
 
 ```
 $ mysql -uroot -p postfixpolicyd
@@ -472,11 +472,12 @@ iRedMail-0.6.0 requires some more values of attribute `enabledService` and `obje
 
 Both `enabledService=sieve` and `enabledService=sievesecured` are used in
 Dovecot-1.2.x, for builtin managesieve service. `enabledService=internal` is
-used for shared IMAP folder. 'objectClass=amavisAccount' is used for
+used for shared IMAP folder. `objectClass=amavisAccount` is used for
 Amavisd-new integration, for example, per-user anti-spam settings, anti-virus
 control.
 
 Steps:
+
 * Download python script used to adding missing values.
 ```
 # cd /root/