diff --git a/FAQ.md b/FAQ.md
index 54730157e3..c9358976b8 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -248,6 +248,7 @@ In the display section of the advanced options you can enable or disable:
 * *Show stars*: to hide stars (favorites)
 * *Show message preview*: to show two lines of the message text
 * *Show address details by default*: to collapse the addresses section by default
+* *Use monospaced font for message text*: to change the typeface of the message text
 * *Conversation action bar*: to disable the bottom navigation bar
 * *Automatically show original message for known contacts*: to automatically show original messages for contacts on your device, please read [this FAQ](#user-content-faq35)
 * *Automatically show images for known contacts*: to automatically show images for contacts on your device, please read [this FAQ](#user-content-faq35)
diff --git a/app/src/main/java/eu/faircode/email/AdapterMessage.java b/app/src/main/java/eu/faircode/email/AdapterMessage.java
index d2c391f637..dc268b3214 100644
--- a/app/src/main/java/eu/faircode/email/AdapterMessage.java
+++ b/app/src/main/java/eu/faircode/email/AdapterMessage.java
@@ -141,6 +141,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
     private boolean compact;
     private boolean name_email;
     private boolean subject_italic;
+    private boolean monospaced;
     private int zoom;
     private String sort;
     private boolean duplicates;
@@ -796,6 +797,8 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             btnHtml.setVisibility(!show_html ? View.INVISIBLE : View.GONE);
             ibQuotes.setVisibility(!show_html ? View.INVISIBLE : View.GONE);
             ibImages.setVisibility(!show_html ? View.INVISIBLE : View.GONE);
+
+            tvBody.setTypeface(monospaced ? Typeface.MONOSPACE : Typeface.DEFAULT);
             tvBody.setVisibility(!show_html ? View.INVISIBLE : View.GONE);
             vwBody.setVisibility(show_html ? View.INVISIBLE : View.GONE);
 
@@ -2937,6 +2940,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
         this.compact = compact;
         this.name_email = prefs.getBoolean("name_email", !compact);
         this.subject_italic = prefs.getBoolean("subject_italic", true);
+        this.monospaced = prefs.getBoolean("monospaced", true);
         this.zoom = zoom;
         this.sort = sort;
         this.duplicates = duplicates;
diff --git a/app/src/main/java/eu/faircode/email/FragmentOptions.java b/app/src/main/java/eu/faircode/email/FragmentOptions.java
index cbce254149..600975e104 100644
--- a/app/src/main/java/eu/faircode/email/FragmentOptions.java
+++ b/app/src/main/java/eu/faircode/email/FragmentOptions.java
@@ -82,6 +82,7 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
     private SwitchCompat swFlags;
     private SwitchCompat swPreview;
     private SwitchCompat swAddresses;
+    private SwitchCompat swMonospaced;
     private SwitchCompat swHtml;
     private SwitchCompat swTracking;
     private SwitchCompat swImages;
@@ -112,7 +113,7 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
 
     static String[] OPTIONS_RESTART = new String[]{
             "startup", "date", "threading", "avatars", "identicons", "name_email", "subject_italic", "flags", "preview",
-            "addresses", "autohtml", "autoimages", "actionbar",
+            "addresses", "monospaced", "autohtml", "autoimages", "actionbar",
             "pull", "swipenav", "autoexpand", "autoclose", "autonext",
             "debug"
     };
@@ -121,7 +122,7 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
             "enabled", "schedule_start", "schedule_end",
             "metered", "download",
             "startup", "date", "threading", "avatars", "identicons", "name_email", "subject_italic", "flags", "preview",
-            "addresses", "autohtml", "remove_tracking", "autoimages", "actionbar",
+            "addresses", "monospaced", "autohtml", "remove_tracking", "autoimages", "actionbar",
             "pull", "swipenav", "autoexpand", "autoclose", "autonext", "collapse", "autoread", "automove",
             "autoresize", "sender", "autosend",
             "notify_preview", "search_local", "light", "sound",
@@ -158,6 +159,7 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
         swFlags = view.findViewById(R.id.swFlags);
         swPreview = view.findViewById(R.id.swPreview);
         swAddresses = view.findViewById(R.id.swAddresses);
+        swMonospaced = view.findViewById(R.id.swMonospaced);
         swHtml = view.findViewById(R.id.swHtml);
         swTracking = view.findViewById(R.id.swTracking);
         swImages = view.findViewById(R.id.swImages);
@@ -356,6 +358,13 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
             }
         });
 
+        swMonospaced.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("monospaced", checked).apply();
+            }
+        });
+
         swHtml.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -601,6 +610,7 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
         swFlags.setChecked(prefs.getBoolean("flags", true));
         swPreview.setChecked(prefs.getBoolean("preview", false));
         swAddresses.setChecked(prefs.getBoolean("addresses", true));
+        swMonospaced.setChecked(prefs.getBoolean("monospaced", true));
         swHtml.setChecked(prefs.getBoolean("autohtml", false));
         swTracking.setChecked(prefs.getBoolean("remove_tracking", true));
         swImages.setChecked(prefs.getBoolean("autoimages", false));
diff --git a/app/src/main/res/layout/fragment_options.xml b/app/src/main/res/layout/fragment_options.xml
index 98e88204fb..2fdf5ac642 100644
--- a/app/src/main/res/layout/fragment_options.xml
+++ b/app/src/main/res/layout/fragment_options.xml
@@ -402,6 +402,18 @@
             app:layout_constraintTop_toBottomOf="@id/tvPreviewHint"
             app:switchPadding="12dp" />
 
+        <androidx.appcompat.widget.SwitchCompat
+            android:id="@+id/swMonospaced"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="12dp"
+            android:layout_marginTop="12dp"
+            android:layout_marginEnd="12dp"
+            android:text="@string/title_advanced_monospaced"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/swAddresses"
+            app:switchPadding="12dp" />
+
         <androidx.appcompat.widget.SwitchCompat
             android:id="@+id/swHtml"
             android:layout_width="match_parent"
@@ -411,7 +423,7 @@
             android:layout_marginEnd="12dp"
             android:text="@string/title_advanced_html"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/swAddresses"
+            app:layout_constraintTop_toBottomOf="@id/swMonospaced"
             app:switchPadding="12dp" />
 
         <TextView
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index fb6ba1461c..f58c01771c 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -166,6 +166,7 @@
     <string name="title_advanced_flags">Show stars (favorites)</string>
     <string name="title_advanced_preview">Show message preview</string>
     <string name="title_advanced_addresses">Show address details by default</string>
+    <string name="title_advanced_monospaced">Use monospaced font for message text</string>
     <string name="title_advanced_html">Automatically show original message for known contacts</string>
     <string name="title_advanced_tracking">Attempt to remove tracking from original messages</string>
     <string name="title_advanced_images">Automatically show images for known contacts</string>