diff -urN ../Mail-SpamAssassin-3.4.0.orig/lib/Mail/SpamAssassin/Plugin/FreeMail.pm ./lib/Mail/SpamAssassin/Plugin/FreeMail.pm
--- ../Mail-SpamAssassin-3.4.0.orig/lib/Mail/SpamAssassin/Plugin/FreeMail.pm	2014-02-07 10:36:27.000000000 +0200
+++ ./lib/Mail/SpamAssassin/Plugin/FreeMail.pm	2014-09-04 00:26:20.000000000 +0300
@@ -290,6 +290,8 @@
 sub _is_freemail {
     my ($self, $email) = @_;
 
+    $email =~ s/\s+$//;
+
     return 0 if $email eq '';
 
     if (defined $self->{freemail_whitelist}{$email}) {