1 files changed, 2 insertions, 0 deletions
diff --git a/public-inbox-mda b/public-inbox-mda
index 177c891e..72f1eac4 100755
--- a/public-inbox-mda
+++ b/public-inbox-mda
@@ -4,6 +4,7 @@
  use strict;
  use warnings;
  use Email::Filter;
+use Email::Address;
  use PublicInbox::Filter;
  use IPC::Run qw(run);
  my $usage = "public-inbox-mda main_repo fail_repo < rfc2822_message";
@@ -14,6 +15,7 @@ my $max = 1024 * 500; # same as spamc
  
  my $filtered;
  if (length($filter->simple->as_string) <= $max
+    && PublicInbox->recipient_specified($filter)
      && do_spamc($filter->simple, \$filtered)) {
          # update our message with SA headers (in case our filter rejects it)
          my $simple = Email::Simple->new($filtered);