diff --git a/en_US/installation/0-setup.dns.md b/en_US/installation/0-setup.dns.md
index 690f089b..e9d94e7f 100644
--- a/en_US/installation/0-setup.dns.md
+++ b/en_US/installation/0-setup.dns.md
@@ -197,6 +197,15 @@ tag. Note that the same identity can have multiple identifiers.
 
 * Run command in terminal to show your DKIM keys:
 
+    !!! attention
+
+        * On some Linux/BSD distribution, you should use command `amavisd-new`
+          instead of `amavisd`.
+        * If it complains `/etc/amavisd.conf not found`, please
+          run the command with path to its config file. For example:
+
+            `amavisd -c /etc/amavisd/amavisd.conf showkeys`
+
 ```bash
 # amavisd showkeys
 dkim._domainkey.mydomain.com.   3600 TXT (
@@ -207,14 +216,6 @@ dkim._domainkey.mydomain.com.   3600 TXT (
   "EV711qseo/omquskkwIDAQAB")
 ```
 
-__Note__: On some Linux/BSD distribution, you should use command `amavisd-new`
-instead of `amavisd`. if it complains `/etc/amavisd.conf not found`, you should
-tell amavisd the correct path of its config file. For example:
-
-```shell
-# amavisd -c /etc/amavisd/amavisd.conf showkeys
-```
-
 * Copy output of command above into one line like below, remove all quotes, but
   keep `;`. __we just need strings inside the `()` block__, it's the value of
   DKIM DNS record.
diff --git a/html/setup.dns.html b/html/setup.dns.html
index a1fbb9c5..b0745206 100644
--- a/html/setup.dns.html
+++ b/html/setup.dns.html
@@ -209,7 +209,20 @@ IDentifier (SDID) and is contained in the DKIM-Signature header fields <code>d=<
 tag. Note that the same identity can have multiple identifiers.</p>
 <h3 id="how-to-setup-the-dkim-record">How to setup the DKIM record</h3>
 <ul>
-<li>Run command in terminal to show your DKIM keys:</li>
+<li>
+<p>Run command in terminal to show your DKIM keys:</p>
+<div class="admonition attention">
+<p class="admonition-title">Attention</p>
+<ul>
+<li>On some Linux/BSD distribution, you should use command <code>amavisd-new</code>
+  instead of <code>amavisd</code>.</li>
+<li>If it complains <code>/etc/amavisd.conf not found</code>, please
+  run the command with path to its config file. For example:</li>
+</ul>
+<pre><code>`amavisd -c /etc/amavisd/amavisd.conf showkeys`
+</code></pre>
+</div>
+</li>
 </ul>
 <pre><code class="bash"># amavisd showkeys
 dkim._domainkey.mydomain.com.   3600 TXT (
@@ -220,12 +233,6 @@ dkim._domainkey.mydomain.com.   3600 TXT (
   &quot;EV711qseo/omquskkwIDAQAB&quot;)
 </code></pre>
 
-<p><strong>Note</strong>: On some Linux/BSD distribution, you should use command <code>amavisd-new</code>
-instead of <code>amavisd</code>. if it complains <code>/etc/amavisd.conf not found</code>, you should
-tell amavisd the correct path of its config file. For example:</p>
-<pre><code class="shell"># amavisd -c /etc/amavisd/amavisd.conf showkeys
-</code></pre>
-
 <ul>
 <li>Copy output of command above into one line like below, remove all quotes, but
   keep <code>;</code>. <strong>we just need strings inside the <code>()</code> block</strong>, it's the value of