diff --git a/Hooks.h b/Hooks.h
index b32f470570..cb8a664e42 100644
--- a/Hooks.h
+++ b/Hooks.h
@@ -210,7 +210,7 @@ namespace Hooks
         // UNUSED                               =     46,       // (event, player)
         PLAYER_EVENT_ON_UPDATE_AREA             =     47,       // (event, player, oldArea, newArea)
         PLAYER_EVENT_ON_TRADE_INIT              =     48,       // (event, player, target) - Can return false to interrupt trade
-        PLAYER_EVENT_ON_SEND_MAIL               =     49,       // (event, player, recipientGuid)
+        PLAYER_EVENT_ON_SEND_MAIL               =     49,       // (event, player, recipientGuid) - Can return false to interrupt sending
         // UNUSED                               =     50,       // (event, player)
         // UNUSED                               =     51,       // (event, player)
         // UNUSED                               =     52,       // (event, player)
diff --git a/TrinityCore/GlobalMethods.h b/TrinityCore/GlobalMethods.h
index 953c8efc6e..15cf029bc5 100644
--- a/TrinityCore/GlobalMethods.h
+++ b/TrinityCore/GlobalMethods.h
@@ -658,7 +658,7 @@ namespace LuaGlobalFunctions
      *     // UNUSED                               =     46,       // (event, player)
      *     PLAYER_EVENT_ON_UPDATE_AREA             =     47,       // (event, player, oldArea, newArea)
      *     PLAYER_EVENT_ON_TRADE_INIT              =     48,       // (event, player, target) - Can return false to interrupt trade
-     *     PLAYER_EVENT_ON_SEND_MAIL               =     49,       // (event, player, recipientGuid)
+     *     PLAYER_EVENT_ON_SEND_MAIL               =     49,       // (event, player, recipientGuid) - Can return false to interrupt sending
      *     // UNUSED                               =     50,       // (event, player)
      *     // UNUSED                               =     51,       // (event, player)
      *     // UNUSED                               =     52,       // (event, player)