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How do I setup an alternative SMTP port on Plesk for Linux?

Art. Nr: 135  |  Rating: 3.9/5 from 138 votes  |  Last Updated: Fri, May 18, 2012

The process of setting up another SMTP port on Parallels Plesk isn’t as complicated as you might initially think. Please follow the step-by-step directions outlined below.

  • Login to your Plesk Virtual/Dedicated server via SSH
  • Please run the following command within SSH:

    # cd /etc/xinetd.d && cp smtp_psa smtp_psa_p26 && vi smtp_psa_p26

  • Next, please enter the following line within the file your editing:

    service smtp_p26

  • Then, please save the changes by typing the following keys:

    Esc key + :wq

  • Upon completion, please run the following file:

    # vi /etc/services

  • Within the above-mentioned file, please add the rows outlined:

    smtp_p26 26/tcp mail
    smtp_p26 26/udp mail

  • Next, just save the changes you’ve just done!

Should you have any further questions pertaining to your Plesk license, please feel free to get in contact with our webhosting support team for additional assistance.

You may use port 2525 as alternative for Plesk mailing as it is very easy to remember :)

Posted by RandyM. - Mon, Jul 30th, 2012

IPtables forwarding feature for linux servers can be used to forward email server ports.

Posted by Travis - Mon, Jul 9th, 2012

Really useful mail know-how for Plesk. We were wondering how to do this cause we have cPanel servers and it is very easy to make Exim to listen on port 26 there.

Posted by Jasmine - Wed, Jun 27th, 2012

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