Ive installed v3 and upgrade my previous site.
I can send mail from the test option in the UI and all is ok.
However, if I try and login or signup. I just get please enter a valid email, i can confirm the emails are all valid.
Looking at the backend, the API request goes out to ghost. However the API response is 500.
To confirm setup I am using:
env.list mail__transport="SMTP" mail__from="noreply@###" mail__options__service="SMTP" mail__options__auth__user="###" mail__options__auth__pass="###" mail__options__host="mail.privateemail.com" mail__options__port="465" mail__options__secureConnection="true"