mailrelay/mailrelay.json

{
	"smtp_server": "smtp.fastmail.com",
	"smtp_port": 465,
	"smtp_username": "username@fastmail.com",
	"smtp_password": "secret_app_password",
	"local_listen_port": 2525,
	"local_listen_ip": "0.0.0.0",
	"allowed_hosts": ["*"]
}