Mailgun, self-hosting on bitnami/gcp.
Sending newsletter (using the mailgun API) works fine.
Also, when I changed port 587 to 465, it fixed the ability to change things in “Settings > Email newsletter” and I could send both confirmation emails.
I’ve tried “secure”: false, (and true)
tls rejectUnauthorized false, etc. No help.
However, when trying to sign up or login as an user, nothing is sent, and there is no error in the error logs, but nothing shown in the Mailgun logs either.