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  3. Open port 25 on DigitalOcean server

Open port 25 on DigitalOcean server

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    • S Offline
      S Offline
      sangroot
      wrote on last edited by
      #1

      I went through the documentation of (https://docs.cloudron.io/email/#required-ports).
      I check when I try to send the mail, the mail is not received, I believe it is blocked port 25.
      I don't want to forward the mail anywhere, I can open that port 25 directly on my vps or somehow can send and receive mail.
      Thanks

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      • nebulonN Offline
        nebulonN Offline
        nebulon
        Staff
        wrote on last edited by
        #2

        Incoming port 25 should already be open. However most VPS provider will block outbound port 25 to reduce spam.
        Do you have an extra firewall in front of your server or what exactly is the issue you are facing?

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        • S Offline
          S Offline
          sangroot
          wrote on last edited by
          #3

          I asked DO to open port 25 complete, but PTR port is having problem.
          2021-09-08_1-09-44.png 2021-09-08_1-09-59.png

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          • S Offline
            S Offline
            sangroot
            wrote on last edited by
            #4

            I have not been able to send mail even though I have opened all the ports.
            2021-09-08_1-13-21.png 2021-09-08_1-13-45.png

            BrutalBirdieB 1 Reply Last reply
            0
            • S sangroot

              I have not been able to send mail even though I have opened all the ports.
              2021-09-08_1-13-21.png 2021-09-08_1-13-45.png

              BrutalBirdieB Offline
              BrutalBirdieB Offline
              BrutalBirdie
              Partner
              wrote on last edited by
              #5

              @sangroot and what about this other red information This server's IP 139.59.224.167 is on a blocklist.?
              By SpamHaus Zen.

              Like my work? Consider donating a drink. Cheers!

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              • S Offline
                S Offline
                sangroot
                wrote on last edited by
                #6

                @brutalbirdie said in Open port 25 on DigitalOcean server:

                and what about this other red information This server's IP 139.59.224.167 is on a blocklist.?
                By SpamHaus Zen.

                This is the server I just created from DO, is there any way to appeal, or do I have to create another server and start over with Cloudron

                BrutalBirdieB nebulonN 2 Replies Last reply
                0
                • S sangroot

                  @brutalbirdie said in Open port 25 on DigitalOcean server:

                  and what about this other red information This server's IP 139.59.224.167 is on a blocklist.?
                  By SpamHaus Zen.

                  This is the server I just created from DO, is there any way to appeal, or do I have to create another server and start over with Cloudron

                  BrutalBirdieB Offline
                  BrutalBirdieB Offline
                  BrutalBirdie
                  Partner
                  wrote on last edited by BrutalBirdie
                  #7

                  @sangroot sorry but can you at least google yourself or just click the URL with the error / warning?

                  But yes of course there is a way that's why this check is there in the first place.

                  https://check.spamhaus.org/listed/?searchterm=139.59.224.167

                  Like my work? Consider donating a drink. Cheers!

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                  • S sangroot

                    @brutalbirdie said in Open port 25 on DigitalOcean server:

                    and what about this other red information This server's IP 139.59.224.167 is on a blocklist.?
                    By SpamHaus Zen.

                    This is the server I just created from DO, is there any way to appeal, or do I have to create another server and start over with Cloudron

                    nebulonN Offline
                    nebulonN Offline
                    nebulon
                    Staff
                    wrote on last edited by
                    #8

                    @sangroot this unfortunately means that your server got an IP with a bad reputation ending up in the blocklist. To explain, those IPs are constantly reused and it could just be that either this IP itself was used by a spammer in the past or that some other IPs in that IP block might have been spammer IPs.

                    This is not unusual though and it takes a bit to get IP reputation up and manually removing it from blacklists by appealing is the first step in this case.

                    If you need to deliver emails reliably from the start, you may consider using a mail relay configured through Cloudron for some time until you are off of all those blocklists.

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