add more bits to the unsub template

diff --git a/templates/email/debian-unsub b/templates/email/debian-unsub
index d2a178446d4f738a888e5eb2f72da8197113c7dd..bb9ee52c1c0efdd0c1498dcbb339a8c0704b161e 100644 (file)
--- a/templates/email/debian-unsub
+++ b/templates/email/debian-unsub
@@ -1,3 +1,12 @@
 I have caused an unsubscription cookie to be sent to your address.
 Please follow the instructions in it to complete the unsubscription
 process.
+
+In the future, if you want to unsubscribe and have forgotten the
+address you subscribed from, the recipient-address is coded into the
+Return-Path.
+
+Example: 
+
+Return-Path: <bounce-debian-devel=don=debian.org@lists.debian.org>
+                                  ^^^^^^^^^^^^^^