Aggressive LMTP header cleanup

This will remove all headers possible during LMTP delivery. From: required or clients do not process the message correctly Message-Id: required for clients to know which messages have been downloaded Chat-Is-Post-Message: is required for our attachment previews Content-Type: required (??) Subject: required due to test assertions
2026-05-13 01:24:36 +00:00 · 2026-05-12 16:02:14 -07:00
1 changed files with 6 additions and 3 deletions
--- a/cmdeploy/src/cmdeploy/postfix/lmtp_header_cleanup
+++ b/cmdeploy/src/cmdeploy/postfix/lmtp_header_cleanup
@@ -1,3 +1,6 @@
-/^DKIM-Signature:/            IGNORE
-/^Authentication-Results:/            IGNORE
-/^Received:/            IGNORE
+/^From:/            DUNNO
+/^Message-Id:/      DUNNO
+/^Chat-Is-Post-Message:/      DUNNO
+/^Content-Type:/    DUNNO
+/^Subject:/         DUNNO
+/.*/                IGNORE