How to change email outgoing port numbers in WHM or via SSH

Lilienthal · Jul 13, 2016

I am currently using these ports 25,465 for outgoing mail server but I am getting the problem since my ISP is blocking some ports. Is if possible to change outgoing port numbers in WHM, I have WHM installed on my hosting. I checked Exim Configuration Manager under Service Configuration and found some ports as 465 : 25 : 587 configured there but not sure I should change them and it will work. Any advice?

Is there an alternative for me to change ports via SSH without using a hosting control panel?

Luxin Host · Jul 13, 2016

Lilienthal said:
I am currently using these ports 25,465 for outgoing mail server but I am getting the problem since my ISP is blocking some ports. Is if possible to change outgoing port numbers in WHM, I have WHM installed on my hosting. I checked Exim Configuration Manager under Service Configuration and found some ports as 465 : 25 : 587 configured there but not sure I should change them and it will work. Any advice?

Is there an alternative for me to change ports via SSH without using a hosting control panel?

1.) Login to your WHM
2.) go to "Server Configuration"
3.) go to "Server Manager"
4.) Locate "exim on another port"
5.) change your port.

If the port does not work, check that your firewall is not blocking in it.

choroba · Jul 13, 2016

I am also using WHM.

Another option is you can allow exim to listen on port 26 other than 25 by clicking on Home Â» Service Configuration Â» Service Manager

How to change email outgoing port numbers in WHM or via SSH

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