I deployed n8n using the Railway standard template and configured the environment variables to enable user invitations with email sending functionality.

However, while the invitation feature logs actions, the emails are not actually sent. The logging provided is insufficient for troubleshooting the issue. I also tried switching to a different email provider, but the problem persists with the same error messages.

Does anyone have any suggestions on how to correctly configure the email settings to resolve this issue? Additionally, how can I effectively debug this problem using Railway’s logging or diagnostic tools?

Failed logging:

Connection timeout
Failed to send email
Failed to send email

Variable setting:

N8N_SMTP_HOST=smtp.gmail.com
N8N_SMTP_PORT=587
N8N_SMTP_SECURE=false
N8N_SMTP_USER=your-email@gmail.com
N8N_SMTP_PASS=your-16-digit-app-password 
N8N_SMTP_SENDER=your-email@gmail.com