forward/reply solution for internal mails

DMS/docker-data/dms/config/postfix/main.cf.append

@@ -0,0 +1,3 @@
+# Content Filter Configuration
+# Routes all local deliveries through content filter on port 10025
+content_filter = smtp:[localhost]:10025

DMS/docker-data/dms/config/postfix/master.cf.append

@@ -0,0 +1,34 @@
+#
+# Content Filter Setup
+# Two additional SMTP services for content filtering
+#
+
+# Port 10025: Content filter input
+# Receives mail from main Postfix, passes to content_filter.py
+localhost:10025 inet n - n - - smtpd
+    -o content_filter=
+    -o local_recipient_maps=
+    -o relay_recipient_maps=
+    -o smtpd_restriction_classes=
+    -o smtpd_client_restrictions=
+    -o smtpd_helo_restrictions=
+    -o smtpd_sender_restrictions=
+    -o smtpd_recipient_restrictions=permit_mynetworks,reject
+    -o mynetworks=127.0.0.0/8
+    -o smtpd_authorized_xforward_hosts=127.0.0.0/8
+    -o receive_override_options=no_unknown_recipient_checks
+
+# Port 10026: Content filter output (re-injection)
+# Receives processed mail from content_filter.py for final delivery
+localhost:10026 inet n - n - - smtpd
+    -o content_filter=
+    -o local_recipient_maps=
+    -o relay_recipient_maps=
+    -o smtpd_restriction_classes=
+    -o smtpd_client_restrictions=
+    -o smtpd_helo_restrictions=
+    -o smtpd_sender_restrictions=
+    -o smtpd_recipient_restrictions=permit_mynetworks,reject
+    -o mynetworks=127.0.0.0/8
+    -o smtpd_authorized_xforward_hosts=127.0.0.0/8
+    -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks

DMS/docker-data/dms/config/user-patches.sh

@@ -5,20 +5,38 @@ CFG_ROOT="/tmp/docker-mailserver"
 SRC_DIR="$CFG_ROOT/postfix"
 DST_DIR="/etc/postfix"
 
-# Dateien nach /etc/postfix kopieren (oder aktualisieren)
-# install -D -m 0644 "$SRC_DIR/transport"   "$DST_DIR/transport"
-# install -D -m 0600 "$SRC_DIR/sasl_passwd" "$DST_DIR/sasl_passwd"
-install -D -m 0644 "$SRC_DIR/header_checks"  "$DST_DIR/header_checks"
+echo "[user-patches.sh] Starting Postfix customizations..."
+
+# Existing patches (header_checks, etc.)
+install -D -m 0644 "$SRC_DIR/header_checks" "$DST_DIR/header_checks"
 install -D -m 0644 "$SRC_DIR/smtp_header_checks" "$DST_DIR/maps/sender_header_filter.pcre"
 
-# Maps bauen
-# postmap "$DST_DIR/transport"
-# postmap "$DST_DIR/sasl_passwd"
+# NEW: Append content filter configuration to main.cf
+if [ -f "$SRC_DIR/main.cf.append" ]; then
+    echo "[user-patches.sh] Appending content filter config to main.cf..."
+    cat "$SRC_DIR/main.cf.append" >> "$DST_DIR/main.cf"
+    echo "[user-patches.sh] ✓ main.cf updated"
+else
+    echo "[user-patches.sh] ⚠ main.cf.append not found, skipping"
+fi
 
-# Rechte auf die .db-Helferdatei
-# chmod 600 "$DST_DIR/sasl_passwd.db" || true
+# NEW: Append content filter services to master.cf
+if [ -f "$SRC_DIR/master.cf.append" ]; then
+    echo "[user-patches.sh] Appending content filter services to master.cf..."
+    cat "$SRC_DIR/master.cf.append" >> "$DST_DIR/master.cf"
+    echo "[user-patches.sh] ✓ master.cf updated"
+else
+    echo "[user-patches.sh] ⚠ master.cf.append not found, skipping"
+fi
 
-# rm -f /etc/dovecot/conf.d/95-sieve-redirect.conf
+# Verify content filter script exists and is executable
+if [ -x "/usr/local/bin/content_filter.py" ]; then
+    echo "[user-patches.sh] ✓ Content filter script found"
+else
+    echo "[user-patches.sh] ⚠ WARNING: content_filter.py not found or not executable!"
+fi
+
+echo "[user-patches.sh] Postfix customizations complete"
 
 # Postfix neu laden (nachdem docker-mailserver seine eigene Konfig geladen hat)
 postfix reload || true