How to configure pfSense to allow outgoing SMTP traffic

In this scenario I would like to allow SMTP traffic to my internet provider so that an application in my test environment is able to send notification messages. In this environment I use pfSense.

For this to work, you have to create a port forwarding rule on the LAN interface forwarding traffic to any IP with port 587.

Open the pfSense interace and go to Firewall rules:

pfsense_smtp_001

Then create a new rule as follows:

pfsense_smtp_002

Make sure you use the right (internal) IP address of the server which is sending the emails.

2 Comments

  1. Thank you for this solution. It absolutely worked.

    1. Author

      Thank you! Glad to hear that!

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