diff --git a/app/ui/legacy/src/main/java/com/fsck/k9/ui/settings/SettingsListFragment.kt b/app/ui/legacy/src/main/java/com/fsck/k9/ui/settings/SettingsListFragment.kt
index ad50a1b3d..b1aca7316 100644
--- a/app/ui/legacy/src/main/java/com/fsck/k9/ui/settings/SettingsListFragment.kt
+++ b/app/ui/legacy/src/main/java/com/fsck/k9/ui/settings/SettingsListFragment.kt
@@ -130,6 +130,12 @@ class SettingsListFragment : Fragment(), ItemTouchCallback {
                     icon = R.attr.iconSettingsAbout
                 )
 
+                addUrlAction(
+                    text = getString(R.string.user_manual_title),
+                    url = getString(R.string.user_manual_url),
+                    icon = R.attr.iconUserManual
+                )
+
                 addUrlAction(
                     text = getString(R.string.get_help_title),
                     url = getString(R.string.user_forum_url),
diff --git a/app/ui/legacy/src/main/res/drawable/ic_open_book.xml b/app/ui/legacy/src/main/res/drawable/ic_open_book.xml
new file mode 100644
index 000000000..99417448f
--- /dev/null
+++ b/app/ui/legacy/src/main/res/drawable/ic_open_book.xml
@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M17.5 14.33C18.29 14.33 19.13 14.41 20 14.57V16.07C19.38 15.91 18.54 15.83 17.5 15.83C15.6 15.83 14.11 16.16 13 16.82V15.13C14.17 14.6 15.67 14.33 17.5 14.33M13 12.46C14.29 11.93 15.79 11.67 17.5 11.67C18.29 11.67 19.13 11.74 20 11.9V13.4C19.38 13.24 18.54 13.16 17.5 13.16C15.6 13.16 14.11 13.5 13 14.15M17.5 10.5C15.6 10.5 14.11 10.82 13 11.5V9.84C14.23 9.28 15.73 9 17.5 9C18.29 9 19.13 9.08 20 9.23V10.78C19.26 10.59 18.41 10.5 17.5 10.5M21 18.5V7C19.96 6.67 18.79 6.5 17.5 6.5C15.45 6.5 13.62 7 12 8V19.5C13.62 18.5 15.45 18 17.5 18C18.69 18 19.86 18.16 21 18.5M17.5 4.5C19.85 4.5 21.69 5 23 6V20.56C23 20.68 22.95 20.8 22.84 20.91C22.73 21 22.61 21.08 22.5 21.08C22.39 21.08 22.31 21.06 22.25 21.03C20.97 20.34 19.38 20 17.5 20C15.45 20 13.62 20.5 12 21.5C10.66 20.5 8.83 20 6.5 20C4.84 20 3.25 20.36 1.75 21.07C1.72 21.08 1.68 21.08 1.63 21.1C1.59 21.11 1.55 21.12 1.5 21.12C1.39 21.12 1.27 21.08 1.16 21C1.05 20.89 1 20.78 1 20.65V6C2.34 5 4.18 4.5 6.5 4.5C8.83 4.5 10.66 5 12 6C13.34 5 15.17 4.5 17.5 4.5Z" />
+</vector>
diff --git a/app/ui/legacy/src/main/res/values/attrs.xml b/app/ui/legacy/src/main/res/values/attrs.xml
index 72d532792..2119c9d3b 100644
--- a/app/ui/legacy/src/main/res/values/attrs.xml
+++ b/app/ui/legacy/src/main/res/values/attrs.xml
@@ -99,6 +99,7 @@
         <attr name="iconAboutTwitter" format="reference"/>
         <attr name="iconAboutFediverse" format="reference"/>
         <attr name="iconUserForum" format="reference"/>
+        <attr name="iconUserManual" format="reference"/>
         <attr name="iconHelp" format="reference"/>
 
         <attr name="unencryptedAttachmentUnlock" format="reference|color" />
diff --git a/app/ui/legacy/src/main/res/values/constants.xml b/app/ui/legacy/src/main/res/values/constants.xml
index 0a1dd9dcb..840330a5e 100644
--- a/app/ui/legacy/src/main/res/values/constants.xml
+++ b/app/ui/legacy/src/main/res/values/constants.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="app_webpage_url" translatable="false">https://k9mail.app/</string>
+    <string name="user_manual_url" translatable="false">https://docs.k9mail.app/</string>
     <string name="user_forum_url" translatable="false">https://forum.k9mail.app/</string>
     <string name="message_header_mua" translatable="false">K-9 Mail for Android</string>
     <string name="app_authors_url" translatable="false">https://github.com/k9mail/k-9/graphs/contributors</string>
diff --git a/app/ui/legacy/src/main/res/values/strings.xml b/app/ui/legacy/src/main/res/values/strings.xml
index a3a538920..d229ea0a9 100644
--- a/app/ui/legacy/src/main/res/values/strings.xml
+++ b/app/ui/legacy/src/main/res/values/strings.xml
@@ -17,6 +17,7 @@
     <string name="app_license">Apache License, Version 2.0</string>
     <string name="about_project_title">Open Source Project</string>
     <string name="about_website_title">Website</string>
+    <string name="user_manual_title">User manual</string>
     <string name="get_help_title">Get help</string>
     <string name="user_forum_title">User forum</string>
     <string name="about_fediverse_title">Fediverse</string>
diff --git a/app/ui/legacy/src/main/res/values/themes.xml b/app/ui/legacy/src/main/res/values/themes.xml
index 5fdeaab57..dd5e00114 100644
--- a/app/ui/legacy/src/main/res/values/themes.xml
+++ b/app/ui/legacy/src/main/res/values/themes.xml
@@ -110,6 +110,7 @@
         <item name="iconAboutLicense">@drawable/ic_description</item>
         <item name="iconAboutWebsite">@drawable/ic_link</item>
         <item name="iconUserForum">@drawable/ic_forum</item>
+        <item name="iconUserManual">@drawable/ic_open_book</item>
         <item name="iconHelp">@drawable/ic_help</item>
         <item name="iconAboutFediverse">@drawable/ic_mastodon</item>
         <item name="iconAboutTwitter">@drawable/ic_twitter</item>
@@ -230,6 +231,7 @@
         <item name="iconAboutLicense">@drawable/ic_description</item>
         <item name="iconAboutWebsite">@drawable/ic_link</item>
         <item name="iconUserForum">@drawable/ic_forum</item>
+        <item name="iconUserManual">@drawable/ic_open_book</item>
         <item name="iconHelp">@drawable/ic_help</item>
         <item name="iconAboutFediverse">@drawable/ic_mastodon</item>
         <item name="iconAboutTwitter">@drawable/ic_twitter</item>