Minimal Email Setup for Ghost 6.0 Docker Instance on Ubuntu?

[ghostdan]

This post might help, last paragraph probably the quickest thing to try.

Ghost 6.0.4 upgrade broke admin login..?

Ghost introduced device verification and 2FA back in April: This requires a working mail configuration. The error message indicates that there is a mismatch in SSL versions. I have ran into this before with a weird VPS setup, though I am surprised this happens on DigitalOcean. Quick workaround: set mail.options.tls.rejectUnauthorized to false in your configuration. Better workaround: use the Mailgun API for transactional emails. DigitalOcean is starting to block standard SMTP ports, so soo…