I had some issues setting up SMTP for Digital Ocean. And also other hosters, since there seems to be a tendency towards “we will not allow SMTP traffic” for a good reason. Please also refer to this thread: Use Mailgun API, instead of SMTP for onboarding-emails?
The idea here is now: Why not make ghost available to use API-calls, like the one we have with mailgun, to get the onboarding emails gone right.
Right now I can live with the “workarounds”, like using ports not suitable for SMTP. But this might be just a matter of time, since ports getting blocked.
Solution:
Make an API option for onboaring-emails as well. (like mailgun API, that is already heavily promoted).
I would assume, that this would bring a so much more flexibility to open-source hosting.