Versions before 0.44.4 of Excon bronken requests to mandrill api. You can see the issue on excon github page here: https://github.com/excon/excon/issues/482 I just fix the version and works fine now.
Versions before 0.44.4 of Excon bronken requests to mandrill api. You can see the issue on excon github page here: https://github.com/excon/excon/issues/482 I just fix the version and works fine now.