We block outbound ports on Cloud Servers for security reasons.
- Ports are blocked by default but can be unblocked only for fully managed servers.
- TCP port (25)
To send emails from your Cloud Server, we highly recommend using a dedicated email deliverability platform (e.g., Sendgrid or Mailgun) for better deliverability and IP reputation handling.
- Ports that are permanently blocked on all plans and the block can't be lifted.
- TCP/UDP Port 17
- TCP/UDP Port 19
- TCP/UDP Port 1900
- TCP/UDP Port 54313
- TCP/UDP Port 11211