unread mail icon would still reappear, fixed now

Postal.lua

@@ -84,6 +84,14 @@ function Postal:MAIL_CLOSED()
 		end
 	end
 	MiniMapMailFrame:Hide()
+	-- There may be an UPDATE PENDING MAIL event after closing which would make the frame reappear, the following prevents that
+	local t = GetTime()
+	MiniMapMailFrame.Show = function()
+		if GetTime() - t > 2 then
+			MiniMapMailFrame.Show = Postal_MiniMapMailFrame_Show_Orig
+			MiniMapMailFrame:Show()
+		end
+	end
 end
 
 function Postal:MAIL_SEND_SUCCESS() 

Postal.xml

@@ -5,6 +5,13 @@ C:\Projects\WoW\Bin\Interface\FrameXML\UI.xsd">
 	<Script file="localization.fr.lua"/>
 	<Script file="localization.cn.lua"/>
 	<Script file="Postal.lua"/>
+	<frame>
+		<Scripts>
+			<OnLoad>
+				Postal_MiniMapMailFrame_Show_Orig = MiniMapMailFrame.Show
+			</OnLoad>
+		</Scripts>
+	</frame>
 	<Button name="PostalButtonTemplate" virtual="true">
 		<Size>
 			<AbsDimension x="37" y="37"/>