X-Git-Url: https://git.madduck.net/etc/mailfilter.git/blobdiff_plain/0cedb2f205d3552104ef3f7edc1d0640fedbd4ff..eb9dd09cb90c9bd41775382ba2febd43f1b8a62d:/procmail/cleanup

diff --git a/procmail/cleanup b/procmail/cleanup
index 0d71fd8..e22b58b 100644
--- a/procmail/cleanup
+++ b/procmail/cleanup
@@ -1,10 +1,15 @@
-:0
-* ^X-Trained-As: \/(h|sp)am
-{ TRAINED_AS=$MATCH }
-
-# remove all headers our mailfilter adds
+# remove all headers added in the *local* mail chain:
+#   1. added by this mailfilter
+#      (but not X-Tickle, X-Postponed, or X-Resubmitted)
+#   2. added by the retraining system
+#   3. added by offlineimap
+#   4. added by the MUA
 :0 fw
-|$FORMAIL -IX-EqDomain -IX-EqTo -IX-Justme -IContent-Length
+|$FORMAIL \
+          -IX-EqDomain -IX-EqTo -IX-Justme -IX-Spamtrapped \
+          -IX-Trained-As \
+          -IX-UID -IX-OfflineIMAP- \
+          -IX-Status -IStatus -IX-Keywords -IContent-Length
 
 # now should be idempotent