my $smtp = Net::SMTPS->new('outlook.com', Port => 587,  doSSL => 'star
+ttls', SSL_version=>'TLSv1');

##</code><code>##

SSL connect attempt failed because of handshake problems

##</code><code>##

my $smtp = Net::SMTPS->new('outlook.com', Port => 587,  doSSL => 'star
+ttls', SSL_version=>'TLSv1_2');