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  1. Finding the reason for "adding disclaimer failed"?

    Will test as you said but I don't think it's going to help. I had disclaimer before with only ascii characters and it was still failing on some messages. If I test my html code or just the disclaimer via https://onlineasciitools.com/validate-ascii I get Will report after a few days of...
  2. Remove compressed attachments example (.zip) that contain .exe, .msi, .aspx in the .zip file

    This works for just file-ending/extension. What if I want to block also also example .com.xml (detect .com) then how to do it? I see some extensions that have more then just file-ending so that would be also helpful to detect I guess.
  3. Finding the reason for "adding disclaimer failed"?

    @Stoiko Ivanov as our policy has changed now we have to add disclaimer to every messages I see a lot more failures to add disclaimer. I have send your the logs via email. Hope you can reproduce the issue. I wish we could have very low or close to 0 failure rate to add disclaimer. Some malicious...
  4. Disable DMARC policy for outbound scanning

    Can you post the full mail log from tracking center or Administration - Syslog of blocked message? You should get more detailed information there why it's failing. Have you setup DKIM via Configuration - Mail Proxy - DKIM Enable DKIM Signing Selector (select one and publish on dns) Sign all...
  5. Snapshot / Suspend / Stop?

    Thank you for this. This is helpful to keep in mind.
  6. How to change Received (Proxmox)

    My mistake I am guessing it's this nano +56 /var/lib/pmg/templates/main.cf.in mail_name = Proxmox Follow the template recommendations https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#pmgconfig_template_engine to retain this value after upgrades. example: cp...
  7. How to change Received (Proxmox)

    This should be your server hostname You can edit the file /etc/hostname example nano /etc/hostname edit the file to match your needs (it should look something like this mx.example.com or mail.example.com) save the changes by using ctrl +x and Y You can also change your SMTPD Banner via...
  8. How does Quarantine work and can you allow Quarantine access via ticket to SPAM, Virus and Attachment (all in one Quarantine?)

    Right now we have a pretty aggressive policy for detecting and blocking spam and malicious mail. That has consequences meaning we have to spend quite a lot of time daily working on adding whitelist items and checking why legitimate mail was blocked. To reduce our workload I am looking into how...
  9. [SOLVED] Spam Quarantine doesn't show e-mails

    Already fixed in Version 7.1-10 https://forum.proxmox.com/threads/modify-header-spam-level-utf-8-q.118001/#post-511585 It's available in the 3.5.4. Proxmox Mail Gateway Test Repository https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#pmg_package_repositories
  10. Remove compressed attachments example (.zip) that contain .exe, .msi, .aspx in the .zip file

    I am getting undesirable behavior with my solution. It's matching on files like rosenbauer.com!example.com!58005.xml.gz (this is matching my rule) looks like it's matching on .com In that archive it's just a file rosenbauer.com!example.com!58005.xml (this is not matching) I see in the logs Nov...
  11. Snapshot / Suspend / Stop?

    One thing I am also wondering is can you make a snapshot without any interruption to the VM OS. Example I have a VM Windows Server 2022 terminal server with 100 active users on the terminal can I make a snapshot without losing connection to terminal like will the users notice the snapshot...
  12. [SOLVED] enabling PIX workarounds: disable_esmtp for receiver server?

    I am guessing we need to disable SMTP inspection on firewalls where this is happening I see three mail servers that are triggering this errors. Will report if this fixes the issue. enabling workarounds seems to also increase processing time on massages. This links seems more useful and related...
  13. [SOLVED] Disable filtering, processing, SA score for a one sender/IP of the sender

    Thanks for the answer. I guess I will have to give up on logs and just configure for this domain for mails to go directly to the mail server.
  14. [SOLVED] enabling PIX workarounds: disable_esmtp for receiver server?

    Of course we have firewalls between locations. We filter mail for many domains for some domains we pass email to internal network others will pass email to external servers that are always behind some firewall. I just quickly searched this warning message if anyone has more information about...
  15. [SOLVED] Disable filtering, processing, SA score for a one sender/IP of the sender

    The main reason why we do not allow sending of mails directly to 2.3.4.5 is keep track of received messages easily via tracking center on pmg and to have a consistent configuration over all domains. Every domain is configured the same way we only allow inbound mail on IP addresses where PMG is...
  16. Remove compressed attachments example (.zip) that contain .exe, .msi, .aspx in the .zip file

    I have configured What Object to detect compressed and non compressed attachments Match Archive Filename. I want to detect all this attachments and in the archives and if it matches the attachment type then it should block. Filename...
  17. How to configure rule set priority for two different block levels for domains and some additional requirements

    @Stoiko Ivanov I understand your point but I do not agree with it. I was expecting this answer that is why I simplified the configuration so now I have just one ruleset for all domains. But again even with this setup I cannot do what I want to do. Why would you not want to optimize and minimize...
  18. [SOLVED] Disable filtering, processing, SA score for a one sender/IP of the sender

    Hello, From server IP 1.2.3.4 I just want to receive and pass email to server 2.3.4.5 without any processing. Is it possible to completely disable filtering including SA score for just one sender server (IP address). I have created Rule with top priority that accepts mail from this sender but...
  19. [SOLVED] enabling PIX workarounds: disable_esmtp for receiver server?

    Been noticing this in the logs for some senders, receivers. Any idea how it works and if it's good or bad? Example from logs: Nov 21 15:54:35 server postfix/smtpd[8412]: connect from mail-yw1-f171.google.com[209.85.128.171] Nov 21 15:54:35 server postfix/smtpd[8412]: Anonymous TLS connection...
  20. How to configure rule set priority for two different block levels for domains and some additional requirements

    So I am struggling to make this optimal it seems like every way I try to configure this it just does not work the way I want it. I don't want to configure yet another mail gateway just for this it's too painful to manage just one pmg. I understand there are limitations with pmg...

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