Toby You can also thank @datitisev for the ability to configure SMTP settings in the admin panel, without having to install a custom extension or enter them manually into the database.
Hello, @datitisev thanks for integrating SMTP in flarum, but it would be a good idea to implement dropdown lists instead of text entries, as was done in the smtp extension, for the driver (only two options valid : smtp or mail), and encryption (ssl, tls or null). An improper entry will be difficult to debug for the user.
At least I hope you have forced lowercase, because in beta-5, SMTP or SSL were not valid.