I was about to type out my question but then noticed the following github issue… Is anyone using Bamboo and having the same issue as posted here? https://github.com/thoughtbot/bamboo/issues/226
I am having a similar error message with roughly the same setup except I am using Mailgun.
And if you are, any ideas on how to fix it? Right now, I think I will opt for using the default Mailgun client from Phoenix.