Hide sender client IP

modoboa_installer/scripts/files/postfix/anonymize_headers.pcre.tpl

@@ -0,0 +1,11 @@
+if /^\s*Received:.*Authenticated sender.*\(Postfix\)/
+/^Received: from .*? \([\w\-.]* \[.*?\]\)(.*|\n.*)\(Authenticated sender: (.+)\)\s+by.+\(Postfix\) with (.*)/
+  REPLACE Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with $3
+endif
+if /^\s*Received: from .*rspamd.localhost .*\(Postfix\)/
+/^Received: from.* (.*|\n.*)\((.+) (.+)\)\s+by (.+) \(Postfix\) with (.*)/
+  REPLACE Received: from rspamd (rspamd $3) by $4 (Postfix) with $5
+endif
+/^\s*X-Enigmail/        IGNORE
+/^\s*X-Originating-IP/  IGNORE
+/^\s*X-Forward/         IGNORE

modoboa_installer/scripts/files/postfix/master.cf.tpl

@@ -27,6 +27,7 @@ submission inet n       -       -       -       -       smtpd
   -o smtpd_helo_restrictions=
   -o smtpd_sender_restrictions=reject_sender_login_mismatch
   -o milter_macro_daemon_name=ORIGINATING
+  -o cleanup_service_name=ascleanup
 %{amavis_enabled}  -o smtpd_proxy_filter=inet:[127.0.0.1]:10026
 #smtps     inet  n       -       -       -       -       smtpd
 #  -o syslog_name=postfix/smtps
@@ -42,6 +43,8 @@ submission inet n       -       -       -       -       smtpd
 #628       inet  n       -       -       -       -       qmqpd
 pickup    unix  n       -       -       60      1       pickup
 cleanup   unix  n       -       -       -       0       cleanup
+ascleanup unix  n       -       -       -       0       cleanup
+  -o header_checks=pcre:/etc/postfix/anonymize_headers.pcre
 qmgr      unix  n       -       n       300     1       qmgr
 #qmgr     unix  n       -       n       300     1       oqmgr
 tlsmgr    unix  -       -       -       1000?   1       tlsmgr

modoboa_installer/scripts/postfix.py

@@ -18,10 +18,9 @@ class Postfix(base.Installer):
 
     appname = "postfix"
     packages = {
-        "deb": ["postfix"],
-        "rpm": ["postfix"],
+        "deb": ["postfix", "postfix-pcre"],
     }
-    config_files = ["main.cf", "master.cf"]
+    config_files = ["main.cf", "master.cf", "anonymize_headers.pcre"]
 
     def get_packages(self):
         """Additional packages."""