summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Mailman/Deliverer.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/Mailman/Deliverer.py b/Mailman/Deliverer.py
index 9595a2e5e..1f0649076 100644
--- a/Mailman/Deliverer.py
+++ b/Mailman/Deliverer.py
@@ -145,6 +145,7 @@ class Deliverer:
# these can be used to surreptitiously gather membership info
del msg['return-receipt-to']
del msg['disposition-notification-to']
+ del msg['x-confirm-reading-to']
# get rid of duplicate fields
del msg['sender']
del msg['errors-to']