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How to Allow Outbound SMTP in CSF Firewall via WHM/cPanel?

Home / How to Allow Outbound SMTP in CSF Firewall via WHM/cPanel?

How to Allow Outbound SMTP in CSF Firewall via WHM/cPanel?

Even after installing the CSF Firewall application, some users may not be able to send emails. This issue is more common with WordPress users and, by allowing outbound SMTP you can resolve it for the CSF Firewall via WHM.

To Allow Outbound SMTP in CSF Firewall follow the below given steps:

1. As root account Login to your WHM.

2. From the menu Access Plugins .

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3. Now click on ConfigServer Security & Firewall.

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The will open the CSF application.

4. Choose the csf tab and in the csf- ConfigServer Firewall section click the Firewall Configuration button.

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Now you will see the ConfigServer Firewall’s configuration interface.

5. For the SMTP_BLOCK field select the SMTP Settings section and click the Off switch .

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6. After that scroll to the bottom and click on the Change button.

It will save the changes you made.

7. Finally click on the Restart csf+lfd button.

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It will restart the CSF application and apply the changes you made.

Thus for your WHM/cPanel server the CSF Firewall will stop blocking all the outgoing SMTP .