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    Resolved - Postfix on Fedora 29 - Why Can't I Send Mail?

    Scheduled Pinned Locked Moved IT Discussion
    postfixfedora 29mail serverdnf-automaticvultremailsmtpfedoralinux
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    • wrx7mW
      wrx7m @IRJ
      last edited by

      @IRJ said in Postfix on Fedora 29 - Why Can't I Send Mail?:

      @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

      I am setting up Postfix on Fedora 29 to send notifications for dnf-automatic and fail2ban. This server is running on Vultr and I am trying to send from DomainB.com to DomainA.com. DomainB is a new domain that hasn't been used for anything and DomainA is our main email domain, setup on Office 365.

      In the postfix logs, I am getting connection timed out -

      Mar 18 17:19:41 HOSTNAME postfix/qmgr[4085]: EEE853EE90: from=<[email protected]>, size=465, nrcpt=1 (queue active)
      Mar 18 17:20:11 HOSTNAME postfix/smtp[9703]: connect to domainA-com.mail.protection.outlook.com[104.47.48.36]:25: Connection timed out
      

      I have tried disabling firewalld, but still have the same issue. Not sure where the hangup is. Any suggestions on what to check?

      I just went through this on Friday

      Me too. 😉 LOL. Picked it back up today.

      1 Reply Last reply Reply Quote 0
      • JaredBuschJ
        JaredBusch @scottalanmiller
        last edited by

        @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

        Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

        This is an account level block. So, you only need do it once per account.

        wrx7mW scottalanmillerS 2 Replies Last reply Reply Quote 1
        • wrx7mW
          wrx7m @JaredBusch
          last edited by

          @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

          @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

          Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

          This is an account level block. So, you only need do it once per account.

          Oh good. That explains why the systems administrator (his title) referred me to the account management team.

          JaredBuschJ scottalanmillerS 2 Replies Last reply Reply Quote 0
          • JaredBuschJ
            JaredBusch @wrx7m
            last edited by JaredBusch

            @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

            @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

            @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

            Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

            This is an account level block. So, you only need do it once per account.

            Oh good. That explains why the systems administrator (his title) referred me to the account management team.

            WTF?
            You submit a support ticket and you are done...

            https://mangolassi.it/topic/11625/cannot-send-emails-out-on-vultr

            My very first ticket to Vultr Support ever:
            614b5dd6-ad26-4a98-b257-6f8b41f035ce-image.png

            1 Reply Last reply Reply Quote 3
            • scottalanmillerS
              scottalanmiller @JaredBusch
              last edited by

              @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

              @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

              Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

              This is an account level block. So, you only need do it once per account.

              With ours it is per machine. Every new machine we request it.

              JaredBuschJ 1 Reply Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller @wrx7m
                last edited by

                @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

                This is an account level block. So, you only need do it once per account.

                Oh good. That explains why the systems administrator (his title) referred me to the account management team.

                Never been referred before. You just submit and minutes later it is done.

                1 Reply Last reply Reply Quote 0
                • JaredBuschJ
                  JaredBusch @scottalanmiller
                  last edited by

                  @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                  @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                  @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                  Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

                  This is an account level block. So, you only need do it once per account.

                  With ours it is per machine. Every new machine we request it.

                  That is not what their policy states.

                  scottalanmillerS 1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller @JaredBusch
                    last edited by

                    @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                    @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                    @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                    @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                    Vultr blocks email on all systems by default. To send outbound from Vultr you must always open a ticket and request that port 25 traffic be allowed.

                    This is an account level block. So, you only need do it once per account.

                    With ours it is per machine. Every new machine we request it.

                    That is not what their policy states.

                    Weird, not how it works for us in practice.

                    1 Reply Last reply Reply Quote 0
                    • wrx7mW
                      wrx7m
                      last edited by

                      From Vultr account management - I included most of this in my initial request -

                      Hello,

                      Thank you for contacting us. We have received your SMTP Unblock request. However before we can remove this block, we must verify additional information.

                      Please reply to this ticket with the following information:

                      1. The business name and organization URL(s) under which you offer services.
                      2. Describe, in as much detail as possible, the nature of the emails you intend to send.
                      3. The volume of email that you plan to deliver on a daily/monthly basis.

                      We need to know this information to make an informed decision regarding your account settings.

                      Please let us know if you have any questions.

                      Kind Regards,
                      Kanita Z.
                      Customer Support

                      1 Reply Last reply Reply Quote 0
                      • wrx7mW
                        wrx7m
                        last edited by wrx7m

                        My reply for the 2nd and 3rd questions.

                        1. The emails are only used for alerts/notifications to our IT department from a handful of monitoring apps/services (fail2ban, dnf-automatic, etc) on the vultr server instances we will be using.
                        2. Very light volume. Again, these are not going to be used as a dedicated mail server; all mail generated from our Vultr instances will be delivered to our Office 365/Exchange online account.

                        Plus, I asked this question-

                        Are you able to open 25 for our entire account, or will I have to request this for each instance?

                        1 Reply Last reply Reply Quote 0
                        • JaredBuschJ
                          JaredBusch
                          last edited by

                          No real argument with their follow up questions.

                          Those are good to get documented. Even if they don't mean shit.

                          IRJI 1 Reply Last reply Reply Quote 1
                          • wrx7mW
                            wrx7m
                            last edited by wrx7m

                            Vultr should have a form for this specific request. I have lost a day waiting for them on the back and forth. They close at 5 ET. First, they give you to tech, then tech reviews it and sends it to account management, who then has to ask you the questions, then you wait based on your reply.

                            scottalanmillerS 1 Reply Last reply Reply Quote 0
                            • scottalanmillerS
                              scottalanmiller @wrx7m
                              last edited by

                              @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                              Vultr should have a form for this specific request. I have lost a day waiting for them on the back and forth. They close at 5 ET. First, they give you to tech, then tech reviews it and sends it to account management, who then has to ask you the questions, then you wait based on your reply.

                              I've never had that happen before.

                              wrx7mW 1 Reply Last reply Reply Quote 0
                              • wrx7mW
                                wrx7m @scottalanmiller
                                last edited by

                                @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                Vultr should have a form for this specific request. I have lost a day waiting for them on the back and forth. They close at 5 ET. First, they give you to tech, then tech reviews it and sends it to account management, who then has to ask you the questions, then you wait based on your reply.

                                I've never had that happen before.

                                Well, maybe they changed the procedure to make it more convoluted and less efficient.

                                scottalanmillerS 1 Reply Last reply Reply Quote 0
                                • IRJI
                                  IRJ @JaredBusch
                                  last edited by

                                  @JaredBusch said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                  No real argument with their follow up questions.

                                  Those are good to get documented. Even if they don't mean shit.

                                  I agree. Spammers make everyone lose

                                  1 Reply Last reply Reply Quote 0
                                  • wrx7mW
                                    wrx7m
                                    last edited by

                                    d8a7b2ec-00cc-4817-b439-f86597107ea0-image.png

                                    @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                    @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                    Vultr should have a form for this specific request. I have lost a day waiting for them on the back and forth. They close at 5 ET. First, they give you to tech, then tech reviews it and sends it to account management, who then has to ask you the questions, then you wait based on your reply.

                                    I've never had that happen before.

                                    1 Reply Last reply Reply Quote 0
                                    • scottalanmillerS
                                      scottalanmiller @wrx7m
                                      last edited by

                                      @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                      @scottalanmiller said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                      @wrx7m said in Postfix on Fedora 29 - Why Can't I Send Mail?:

                                      Vultr should have a form for this specific request. I have lost a day waiting for them on the back and forth. They close at 5 ET. First, they give you to tech, then tech reviews it and sends it to account management, who then has to ask you the questions, then you wait based on your reply.

                                      I've never had that happen before.

                                      Well, maybe they changed the procedure to make it more convoluted and less efficient.

                                      Could be. I've done it recently. But not REAL recently.

                                      1 Reply Last reply Reply Quote 0
                                      • wrx7mW
                                        wrx7m
                                        last edited by

                                        Finally got the SMTP unblocked. It applied to the instance (multiple servers) that needed to be hard reset in order for it to take effect. Afterward, I was able to send a test message out from postfix and received it. Thanks @dbeato @JaredBusch @scottalanmiller

                                        dbeatoD JaredBuschJ 2 Replies Last reply Reply Quote 1
                                        • dbeatoD
                                          dbeato @wrx7m
                                          last edited by

                                          @wrx7m Awesome! Glad it is going well then.

                                          1 Reply Last reply Reply Quote 1
                                          • JaredBuschJ
                                            JaredBusch @wrx7m
                                            last edited by

                                            @wrx7m said in Resolved - Postfix on Fedora 29 - Why Can't I Send Mail?:

                                            It applied to the instance (multiple servers)

                                            FFS no. That is not what anything is.

                                            It applied to the Account. Which contains multiple instances.
                                            Instances that could be servers or desktops or WTF ever.

                                            wrx7mW 1 Reply Last reply Reply Quote 0
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