diff --git a/en_US/installation/0-install.iredmail.on.debian.ubuntu.md b/en_US/installation/0-install.iredmail.on.debian.ubuntu.md
index 6631710a..163eef0a 100644
--- a/en_US/installation/0-install.iredmail.on.debian.ubuntu.md
+++ b/en_US/installation/0-install.iredmail.on.debian.ubuntu.md
@@ -92,7 +92,7 @@ mx.example.com
 ## Start iRedMail installer
 
 It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.
+questions, that's all required to setup a full-featured mail server.
 
 > For Chinese users: Our domain name `iredmail.org` is blocked in mainland
 > China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/en_US/installation/0-install.iredmail.on.freebsd.md b/en_US/installation/0-install.iredmail.on.freebsd.md
index 4d18c274..d964544a 100644
--- a/en_US/installation/0-install.iredmail.on.freebsd.md
+++ b/en_US/installation/0-install.iredmail.on.freebsd.md
@@ -97,7 +97,7 @@ mx.example.com
 ## Start iRedMail installer
 
 It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.
+questions, that's all required to setup a full-featured mail server.
 
 > For Chinese users: Our domain name `iredmail.org` is blocked in mainland
 > China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/en_US/installation/0-install.iredmail.on.freebsd.with.jail.md b/en_US/installation/0-install.iredmail.on.freebsd.with.jail.md
index 9380bd88..49fd05bd 100644
--- a/en_US/installation/0-install.iredmail.on.freebsd.with.jail.md
+++ b/en_US/installation/0-install.iredmail.on.freebsd.with.jail.md
@@ -153,7 +153,7 @@ nameserver 172.16.122.2
 ## Start iRedMail installer
 
 It's now ready to start iRedMail installer inside Jail, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.
+questions, that's all required to setup a full-featured mail server.
 
 > For Chinese users: Our domain name `iredmail.org` is blocked in mainland
 > China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/en_US/installation/0-install.iredmail.on.openbsd.md b/en_US/installation/0-install.iredmail.on.openbsd.md
index ee9db58e..d7d6da81 100644
--- a/en_US/installation/0-install.iredmail.on.openbsd.md
+++ b/en_US/installation/0-install.iredmail.on.openbsd.md
@@ -123,7 +123,7 @@ Install Bash shell, it's required by iRedMail.
 ## Start iRedMail installer
 
 It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.
+questions, that's all required to setup a full-featured mail server.
 
 > For Chinese users: Our domain name `iredmail.org` is blocked in mainland
 > China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/en_US/installation/0-install.iredmail.on.rhel.md b/en_US/installation/0-install.iredmail.on.rhel.md
index 8af4dec8..c8e70c8d 100644
--- a/en_US/installation/0-install.iredmail.on.rhel.md
+++ b/en_US/installation/0-install.iredmail.on.rhel.md
@@ -119,7 +119,7 @@ Disable it immediately without rebooting your server.
 ## Start iRedMail installer
 
 It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.
+questions, that's all required to setup a full-featured mail server.
 
 > For Chinese users: Our domain name `iredmail.org` is blocked in mainland
 > China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/html/install.iredmail.on.debian.ubuntu.html b/html/install.iredmail.on.debian.ubuntu.html
index a71fd263..3b909ba0 100644
--- a/html/install.iredmail.on.debian.ubuntu.html
+++ b/html/install.iredmail.on.debian.ubuntu.html
@@ -111,7 +111,7 @@ mx.example.com
 
 <h2 id="start-iredmail-installer">Start iRedMail installer</h2>
 <p>It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.</p>
+questions, that's all required to setup a full-featured mail server.</p>
 <blockquote>
 <p>For Chinese users: Our domain name <code>iredmail.org</code> is blocked in mainland
 China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/html/install.iredmail.on.freebsd.html b/html/install.iredmail.on.freebsd.html
index 91a5cda4..4e71ecf2 100644
--- a/html/install.iredmail.on.freebsd.html
+++ b/html/install.iredmail.on.freebsd.html
@@ -114,7 +114,7 @@ mx.example.com
 
 <h2 id="start-iredmail-installer">Start iRedMail installer</h2>
 <p>It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.</p>
+questions, that's all required to setup a full-featured mail server.</p>
 <blockquote>
 <p>For Chinese users: Our domain name <code>iredmail.org</code> is blocked in mainland
 China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/html/install.iredmail.on.freebsd.with.jail.html b/html/install.iredmail.on.freebsd.with.jail.html
index 2a8c1be0..e0e180b0 100644
--- a/html/install.iredmail.on.freebsd.with.jail.html
+++ b/html/install.iredmail.on.freebsd.with.jail.html
@@ -175,7 +175,7 @@ nameserver 172.16.122.2
 
 <h2 id="start-iredmail-installer">Start iRedMail installer</h2>
 <p>It's now ready to start iRedMail installer inside Jail, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.</p>
+questions, that's all required to setup a full-featured mail server.</p>
 <blockquote>
 <p>For Chinese users: Our domain name <code>iredmail.org</code> is blocked in mainland
 China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/html/install.iredmail.on.openbsd.html b/html/install.iredmail.on.openbsd.html
index faf2edf3..f29ef2ae 100644
--- a/html/install.iredmail.on.openbsd.html
+++ b/html/install.iredmail.on.openbsd.html
@@ -143,7 +143,7 @@ near you on OpenBSD web site:
 
 <h2 id="start-iredmail-installer">Start iRedMail installer</h2>
 <p>It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.</p>
+questions, that's all required to setup a full-featured mail server.</p>
 <blockquote>
 <p>For Chinese users: Our domain name <code>iredmail.org</code> is blocked in mainland
 China since Jun 04, 2011, please run below command with a nearest mirror
diff --git a/html/install.iredmail.on.rhel.html b/html/install.iredmail.on.rhel.html
index 569f3794..bf966829 100644
--- a/html/install.iredmail.on.rhel.html
+++ b/html/install.iredmail.on.rhel.html
@@ -135,7 +135,7 @@ used by iRedMail team to build the binary packages are available
 
 <h2 id="start-iredmail-installer">Start iRedMail installer</h2>
 <p>It's now ready to start iRedMail installer, it will ask you several simple
-questions, that's all steps to setup a full-featured mail server.</p>
+questions, that's all required to setup a full-featured mail server.</p>
 <blockquote>
 <p>For Chinese users: Our domain name <code>iredmail.org</code> is blocked in mainland
 China since Jun 04, 2011, please run below command with a nearest mirror