The issue here for me was not parsing in the port, the wylio:mandrill package default to 465, and Mandrill SMTP was on 587, I just needed to add the port argument to Mandrill.config.
i have the same issue. after updating my Meteor project from 1.4 to 1.5 the email throw an error now. i tried changing port, add smtps but none was working. i also tried to remove and add the email package, and upgrade the email to 1.2.3 but still not working… any help? thanks.