From ea8ce97d093a094a423e56d8b9c117328b990e93 Mon Sep 17 00:00:00 2001
From: Zhang Huangbin <Zhang Huangbin@localhost>
Date: Thu, 14 Apr 2016 08:53:58 +0800
Subject: [PATCH] Update setup.dns.html, mark 'Register your mail domain in
 Google Postmaster Tools' as optional but highly recommended.

---
 en_US/installation/0-setup.dns.md | 4 +++-
 html/setup.dns.html               | 5 +++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/en_US/installation/0-setup.dns.md b/en_US/installation/0-setup.dns.md
index 93847082..c6fa2afd 100644
--- a/en_US/installation/0-setup.dns.md
+++ b/en_US/installation/0-setup.dns.md
@@ -265,7 +265,9 @@ If you want to re-generate DKIM key, or need to generate one for new mail
 domain, please check our another tutorial:
 [Sign DKIM signature on outgoing emails for new mail domain](./sign.dkim.signature.for.new.domain.html).
 
-## [OPTIONAL] Register your mail domain in Google Postmaster Tools
+## Register your mail domain in Google Postmaster Tools
+
+This step is __optional__, but __higly recommended__.
 
 Google Postmaster Tools web site: <https://postmaster.google.com>, and
 [Postmaster Tools FAQs](https://support.google.com/mail/answer/6258950).
diff --git a/html/setup.dns.html b/html/setup.dns.html
index 61a87db0..5278262f 100644
--- a/html/setup.dns.html
+++ b/html/setup.dns.html
@@ -38,7 +38,7 @@
 <li><a href="#how-to-setup-the-dkim-record">How to setup the DKIM record</a></li>
 </ul>
 </li>
-<li><a href="#optional-register-your-mail-domain-in-google-postmaster-tools">[OPTIONAL] Register your mail domain in Google Postmaster Tools</a></li>
+<li><a href="#register-your-mail-domain-in-google-postmaster-tools">Register your mail domain in Google Postmaster Tools</a></li>
 <li><a href="#references">References</a></li>
 </ul>
 </li>
@@ -262,7 +262,8 @@ some hours to be available.</p>
 <p>If you want to re-generate DKIM key, or need to generate one for new mail
 domain, please check our another tutorial:
 <a href="./sign.dkim.signature.for.new.domain.html">Sign DKIM signature on outgoing emails for new mail domain</a>.</p>
-<h2 id="optional-register-your-mail-domain-in-google-postmaster-tools">[OPTIONAL] Register your mail domain in Google Postmaster Tools</h2>
+<h2 id="register-your-mail-domain-in-google-postmaster-tools">Register your mail domain in Google Postmaster Tools</h2>
+<p>This step is <strong>optional</strong>, but <strong>higly recommended</strong>.</p>
 <p>Google Postmaster Tools web site: <a href="https://postmaster.google.com">https://postmaster.google.com</a>, and
 <a href="https://support.google.com/mail/answer/6258950">Postmaster Tools FAQs</a>.</p>
 <p>It's very simple: just register your mail domain there, and they'll give you a