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    Psotfix relay - lost connection after UNKNOWN from

    Scheduled Pinned Locked Moved pfSense Packages
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    • C
      c0mputerking
      last edited by

      Hello all i am having trouble getting pfsense and the postfix relay package to send any mails as a test i have tried setting up email notifications using the pfsense machine as a the smtp server like in the attached screen shot

      This is what i get in the logs

      php: /system_advanced_notifications.php: Could not send the message to ryan@computerking.ca – Error: could not connect to the host "10.22.20.254": ??
      Sep 20 01:23:53 postfix/smtpd[58824]: disconnect from pfsense.solar.lan[10.22.20.254]
      Sep 20 01:23:53 postfix/smtpd[58824]: lost connection after UNKNOWN from pfsense.solar.lan[10.22.20.254]
      Sep 20 01:23:53 postfix/smtpd[58824]: connect from pfsense.solar.lan[10.22.20.254]

      I have tried a telnet session and it works internally ( see below )  on the pfsense machine as well as on another machine on the system

      telnet 10.22.20.254 25
      Trying 10.22.20.254…
      Connected to pfsense.solar.lan.
      Escape character is '^]'.
      220 pfsense.solar.lan ESMTP Postfix
      421 4.4.2 pfsense.solar.lan Error: timeout exceeded
      Connection closed by foreign host.

      Did some digging around on google but did not seem to find anything that helped me, sorry if i am missing something obvious

      PS not clear on how to add the rules to the firewall and/or nat for postfix relay package or if they are even needed ... could  it have anything to do with that?
      screenshot_37.png
      screenshot_37.png_thumb

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      • D
        doktornotor Banned
        last edited by

        You should allow port 25 on WAN.

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        • D
          doktornotor Banned
          last edited by

          @c0mputerking:

          PS not clear on how to add the rules to the firewall and/or nat for postfix relay package or if they are even needed … could  it have anything to do with that?

          You should allow port 25 on WAN.

          @c0mputerking:

          Connected to pfsense.solar.lan.
          Escape character is '^]'.
          220 pfsense.solar.lan ESMTP Postfix
          421 4.4.2 pfsense.solar.lan Error: timeout exceeded
          Connection closed by foreign host.

          The timeout is no error! You simply did not send any mail, so postfix disconnected the inactive session.

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          • B
            biggsy
            last edited by

            Can you explain what you mean by "…getting pfsense and the postfix relay package to send any mails..."?

            Allowing port 25 on WAN won't help with sending emails.

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            • C
              c0mputerking
              last edited by

              As for a explaination … I try to send a notifcation test email using SMTP setup like in the attached screenshot in my first post get no emial and errors in the system log lastly again telnet seems to work and my LAN is wide default open for firewall for now

              php: /system_advanced_notifications.php: Could not send the message to ryan@computerking.ca -- Error: could not connect to the host "10.22.20.254": ??
              Sep 20 01:23:53    postfix/smtpd[58824]: disconnect from pfsense.solar.lan[10.22.20.254]
              Sep 20 01:23:53    postfix/smtpd[58824]: lost connection after UNKNOWN from pfsense.solar.lan[10.22.20.254]
              Sep 20 01:23:53    postfix/smtpd[58824]: connect from pfsense.solar.lan[10.22.20.254]

              PS i am kind of repeating myself here but maybe i wasnt clear in my first post

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              • B
                biggsy
                last edited by

                The postfix package is an email relay, not a full mail server - i.e., no mailboxes.  Where is the real mail server that receives emails for the computerking.ca domain?

                To send notifications like that from pfSense they should go, direct, to a real mail server.  No need for postfix.

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                • C
                  c0mputerking
                  last edited by

                  computer\king.ca is across town so exteral ip/network  Ok so i need to set notification diffently?? and direct to computerking.ca??  I also would like systems on my LAN to use pfsense as relay to the main computerking.ca mail server is that what this setup is for?

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                  • B
                    biggsy
                    last edited by

                    @c0mputerking:

                    computer\king.ca is across town so exteral ip/network 
                    Ok so i need to set notification diffently?? and direct to computerking.ca?? 
                    I also would like systems on my LAN to use pfsense as relay to the main computerking.ca mail server
                    is that what this setup is for?

                    Yes, notifications go direct to the mail server for computerking.ca  They're being sent from the firewall so no need for them to pass through postfix.

                    I don't really see the point of sending via postfix to the computerking.ca mail server but, yes, you could use it for that.

                    The most common use for the postfix package is in front of a mail server on the LAN/DMZ to prevent spammers from hitting it.  However, you can use it to apply anti-spam filtering to outgoing mail from LAN PCs and servers.

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