How to Port Forward 1st SMTP Server in Your Router

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Port Forward Staff
July 22, 2021 (Last Updated: ) | Reading Time: 1 minutes

The ports that need to be forwarded for 1st SMTP Server are listed here:

1st SMTP Server - PC

  • TCP: 25
  • UDP:

Set Up a Port Forward for 1st SMTP Server

You may need to forward ports in your router when you use 1st SMTP Server. The purpose of forwarding ports is to make a direct connection from the internet to 1st SMTP Server.

By default routers do not allow incoming network requests. By forwarding ports you can work around this limitation.

Before Forwarding a Port

Before forwarding a port make sure that you know these things:

How to Locate Your Router's IP Address

To find your router's IP address the easy way you can use our free Router Detector software. It's a part of the Network Utilities suite of tools and it's completely free to use.

We have a guide you can follow Find Your Router IP Address if you don't want to run the software.

How To Set Up Port Forwarding for 1st SMTP Server

You can use our Network Utilities software to automatically forward ports for you. Since Network Utilities allows you to both forward and un-forward ports easily you can keep your network security maximized, and then forward ports only when you need them.

Port forwarding can also be set up step-by-step by hand. The way to forward a port is:

You probably will need to reboot your router for the changes to take effect.

You can choose your router from our list to see exactly how to forward ports for 1st SMTP Server:

List of Routers - Customized for 1st SMTP Server

Those are the steps for forwarding ports in your router for 1st SMTP Server.

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