Test for DMARC when sending report email.

1 files changed, 22 insertions, 0 deletions

diff --git a/perllib/Utils/Email.pm b/perllib/Utils/Email.pm
new file mode 100644
index 000000000..466c05ad1
--- /dev/null
+++ b/perllib/Utils/Email.pm
@@ -0,0 +1,22 @@
+package Utils::Email;
+
+use Email::Address;
+use Net::DNS::Resolver;
+
+# DMARC stabbity stab
+sub test_dmarc {
+    my $email = shift;
+
+    my $addr = (Email::Address->parse($email))[0];
+    return unless $addr;
+
+    my $domain = $addr->host;
+    my @answers = Net::DNS::Resolver->new->send("_dmarc.$domain", 'TXT')->answer;
+    @answers = map { $_->txtdata } @answers;
+    my $dmarc = join(' ', @answers);
+    return unless $dmarc =~ /p *= *reject/;
+
+    return 1;
+}
+
+1;