In your config.production.json add following entry
"mail": {
"from": "info@transang.me",
"transport": "SMTP",
"options": {
"port": 587,
"host": "smtp.sendgrid.net",
"secureConnection": false,
"auth": {
"user": "apikey",
"pass": "your sendgrid API key in plain text"
}
}
}
Note that secureConnection must be false or ignored (it is false by default)
Additional information