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Alternate SMTP Page Title Module
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  • Alternate SMTP

    My ISP is blocking port 25. Is there an alternate host/port that I can use?

    For example, when I was on shared hosting, I could use "alternativesmtp.myhosting.com" on port 587.

    I'm on Plesk VPS for Business.

    Thanks,
    Shane.

  • #2
    I believe this article may be helpful: KB Parallels: Can I use an additional port other than port 25 for SMTP connections? I was told I should open up one more ports for SMTP because most ISPs block port 25 now.

    I assume you're on CentOS with Plesk running Postfix mail server?

    Comment


    • #3
      I also found a firewall rule method which may be better since it would be unaffected by future upgrades: HOWTO: using alternative port for SMTP and PLESK - Parallels Forums

      I haven't test this but it's fairly easy to reset your firewall rules if something goes wrong from Virtuozzo power panel. So it's a safer bet. But as always, MAKE A BACKUP!!! I'm thinking about adding that slogan to my signature

      Comment


      • #4
        Alternate SMTP

        I'm on CentOS. Postfix is the default, so I'm assuming that I'm using that (but I'm not sure how to check). I will try adding an additional port to Postfix.

        Thanks for the quick response.

        Shane.

        Comment


        • #5
          Alternate SMTP

          I stumbled across this completely by accident...

          I turns out that there is an option that already exists in Plesk to specify an alternate SMTP port. You just need to navigate to Server > Settings > Mail Server Settings and click "Enable message submission". You can then just change the SMTP port to 587.

          So much easier.

          Shane.

          Comment


          • #6
            Oh excellent, did it work for you as well without firewall modification?

            Comment


            • #7
              Jeremya,

              The help file says to add an exception to the Plesk firewall, but it works without adding an exception.

              Shane.

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