I have been able to get Test::Reporter to work by hard coding the testers.cpan.org MX record(mx.develooper.com) as follows:

sub new {
    my $type  = shift;
    my $class = ref($type) || $type;
    my $self  = {
    '_mx' => ['mx1.x.perl.org', mx.develooper.com'],
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That is a snippet from near the top of the Test::Reporter module.