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-rwxr-xr-xpublic-inbox-mda4
1 files changed, 3 insertions, 1 deletions
diff --git a/public-inbox-mda b/public-inbox-mda
index 4e971d92..177c891e 100755
--- a/public-inbox-mda
+++ b/public-inbox-mda
@@ -10,9 +10,11 @@ my $usage = "public-inbox-mda main_repo fail_repo < rfc2822_message";
 my $filter = Email::Filter->new(emergency => "~/emergency.mbox");
 my $main_repo = shift @ARGV or die "Usage: $usage\n";
 my $fail_repo = shift @ARGV or die "Usage: $usage\n";
+my $max = 1024 * 500; # same as spamc
 
 my $filtered;
-if (do_spamc($filter->simple, \$filtered)) {
+if (length($filter->simple->as_string) <= $max
+    && do_spamc($filter->simple, \$filtered)) {
         # update our message with SA headers (in case our filter rejects it)
         my $simple = Email::Simple->new($filtered);
         $filtered = undef;