diff --git a/NEWS b/NEWS
index dd9490652..28b052dbf 100644
--- a/NEWS
+++ b/NEWS
@@ -21,6 +21,7 @@ Bug fixes
  - [web] SOGoCalendarWeekdays must now be defined before saving preferences
  - [web] fixed CAS session timeout handling during XHR requests (#1456)
  - [web] exposed default value of SOGoMailAutoSave (#4053)
+ - [web] exposed default value of SOGoMailAddOutgoingAddresses (#4064)
  - [web] fixed handling of contact organizations (#4028)
  - [web] fixed handling of attachments in mail editor (#4058, #4063)
  - [web] fixed saving draft outside Mail module (#4071)
diff --git a/UI/PreferencesUI/UIxJSONPreferences.m b/UI/PreferencesUI/UIxJSONPreferences.m
index ae26ff895..fa3f75ac3 100644
--- a/UI/PreferencesUI/UIxJSONPreferences.m
+++ b/UI/PreferencesUI/UIxJSONPreferences.m
@@ -259,6 +259,9 @@ static SoProduct *preferencesProduct = nil;
       [defaults setContactsCategories: categoryLabels];
     }
 
+  if (![[defaults source] objectForKey: @"SOGoMailAddOutgoingAddresses"])
+    [[defaults source] setObject: [NSNumber numberWithBool: [defaults mailAddOutgoingAddresses]] forKey: @"SOGoMailAddOutgoingAddresses"];
+
   //
   // Default Mail preferences
   //