I cannot figure out how you use a different email provider than mailgun or others. I’m self-hosting my email server (which is located at mail.apexcloud.be).
I am either getting the error "Invalid credentials, or “Error sending email! Error sending email: Failed to send email. Reason: 140104047986624:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:…/deps/openssl/openssl/ssl/record/ssl3_record.c:332”.