1 files changed, 25 insertions, 0 deletions
diff --git a/src/m-filter b/src/m-filter
new file mode 100755
index 0000000..756f8b6
--- /dev/null
+++ b/src/m-filter
@@ -0,0 +1,25 @@
+#!/usr/bin/perl -p
+
+# m-filter -- filter headers
+
+# Edit this script to your own preferences.
+
+BEGIN {
+	sub header { $_ =~ shift .. not $next =~ /^[ \t]/ }
+	sub skip { $_ = '' }
+}
+
+($_, $next) = ($next, $_);
+skip if header qr/^X-(?!(
+	  Mailer
+	| Rspamd-\S+
+):)/xi;
+skip if header qr/^(
+	  Received
+	| Received-SPF
+	| (DKIM|DomainKey)-Signature
+	| ARC-\S+
+	| IronPort-\S+
+):/x;
+
+END { print $next }