1. A

    Selective smarthost (based on recipient, say or

    We've been using PMG for a couple of weeks but today I saw our IP address seems to be on a Microsoft blocklist - ignore this part, how to get unblocked is not the reason why I am posting. Rather, I'd like to see how to get PMG to work with selective smarthosts or possibly some other suggestions...
  2. U

    [SOLVED] Microsoft 365 (aka Office 365) Smart Host

    The outbound smart host connector from 365 to Proxmox is failing with a Relay access denied error. All of Microsoft's IP ranges have been added as trusted networks in the following configuration location: Configuration > Mail Proxy > Networks Here are their ranges...
  3. t0mz

    Configuration/Mail Proxy/Relaying/Smarthost not showing effect

    Hi there, I recently have been handed over a cluster of Proxmox Mail Gateways, unfortunately without a proper handover, let alone documentation. And now I am trying to make sense of things, so apologies if some of my questions are obvious to someone experienced. My system is set up in a way...
  4. M

    [SOLVED] Ausgehende Mails an Smarthost senden

    Hallo, ich habe eine Frage bezüglich des PMG. Ich würde gerne ausgehende Mails an einen Smarthost im Internet senden. Ist das möglich? Hier mein Aufbau. Eingehende Mail: Absender -> Mailserver bei Provider -> PMG -> MS-Exchange Ausgehende Mail (Aktuell): MS-Exchange -> Mailserver bei...
  5. J

    Configuration & Smarthost

    Hi, I´ve put the next configuration in the Mail Proxy (the attached files / The other sites have the default configuration) and the problem is that the email can´t receive any mail but it can send, the port 25 is open so I think that is a configuration problem in the proxmox...
  6. N

    Using PMG for in- and outgoing mails as relay/semi-smarthost

    Hello everyone, sorry if the question has already been asked, I couldn't find anything about it. We are currently using the PMG as a cluster, which filters incoming mail and then forwards it to the actual mail server. Now this infrastructure is to be expanded so that not one mail server is...
  7. B

    How to get PMG to work with WHM/Cpanel?

    Hi. I want Proxmox Mail Gateway to sit in front of the WHM/Cpanel and filter out all the spam for both incoming and outgoing email first. I can't find any good step by step tutorial on how to do it. So far, I have a bit and pieces together but not sure it will work. What I know I must do are as...
  8. D

    [SOLVED] PMG Mailrealying über SMTP Server des Providers

    Kann der PMG V5.2.1 senden über einen Smarthost bei welchem man sich authentifizieren muss? Zum Beispiel über einen Provider welcher Mailservice anbietet und die DNS Domain hostet. Grund dafür ist, dass ein Standort keine Statische IP hat und somit das Senden nicht geht weil der Empfänger die...
  9. W

    Sender based relay policy

    Hi everyone! Is it possible in PMG to do the following scenario? 1. In MS Exchange we have 2 domains, let's say and 2. User could send mail from both domains. 3. PMG acts as relay sever. 4. If user send email from, the email should go straight to internet...


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