Recent content by Hugo Almeida

  1. Monitor emails received and sent from Proxmox by Zabbix

    good afternoon, I would like to monitor with Zabbix the emails received and sent by Proxmox Mail Gateway. Has anyone implemented this type of monitoring? Which command on the Proxmox Mail Gateway can I check the quantity in numbers of emails received and sent? Thanks in advance for your...
  2. Reject unknown clients and senders

    It's ok. Thank you very much for the answer.
  3. Reject unknown clients and senders

    This is not the answer I expected, but I thank you for your attention. My question is what do these two features of PROXMOX MAIL GATEWAY do ??? - Reject Unknown Customers - Reject Unknown Senders If I enable these two features, what will it do ??? Thanks in advance.
  4. Reject unknown clients and senders

    Good Morning, Do you want to clarify a doubt, there are two options of features in Proxmox Mail Gateway, in Options within Mail Proxy, which says - Reject unknown clients and another Reject unknown senders. If you enable these features or what you need exactly, do you need to work with the...
  5. Configure fail2ban alert email

    Good Morning, I'd like to set up the fail2ban ban email alert, where it will only send emails once a week, a kind of summary. Please, if anyone can help me with this. Thank you very much for your attention. Sincerely, Hugo Almeida
  6. Proxmox Mail Gateway DKIM Configuration

    Then all emails sent when parsing the header check for this error. Following is our configuration on the PMG console and the directory structure on the PMG server. No right TXT DNS entered as the application teaches us. Sincerely, Hugo Almeida
  7. Proxmox Mail Gateway DKIM Configuration

    Good Morning, Make all configurations as per configurations, and perform an email test, parsing the header identifies an error (dkim = fail (no signature key)). Attached is the print of the error. Thanks in advance for your attention. Sincerely, Hugo Almeida
  8. Proxmox Mail Gateway DKIM Configuration

    Good Morning, I need help deploying DKIM on Proxmox Mail Gateway. We are trying to copy DNS TXT, but the syntax error, please, can help me a lot.
  9. Proxmox Mail Gateway DKIM Configuration

    Good afternoon, You want instructions for setting up DKIM functionality on the Proxmox Mail Gateway. Please, if anyone can guide me. Thanks in advance for your attention. Sincerely, Hugo Almeida
  10. Google emails coming back

    Yes, though, I can change the IP that is being used on MX and now our IP is no longer on the RBL lists, I would like to know how or Google updates this on their basis. Thanks in advance for your attention.
  11. Google emails coming back

    Good afternoon, I'm having trouble sending email to google.com domains, the emails returned, with the following message appearing: host gmail-smtp-in.l.google.com [64.233.186.26] said: 550-5.7.28 [200.199.203.6 1] Our system has detected an unusual problem 550-5.7.28 rate unsolicited emails...
  12. Proxmox Mail Gateway Log Error

    Good afternoon, My Proxmox Mail Gateway is popping up a log message: postfix/postscreen[21493]: CONNECT from [209.85.221.48]:43262 to [192.168.20.18]:25 postfix/postscreen[21504]: fatal: error [-30986] seeking /var/lib/postfix/postscreen_cache.db: Success postfix/master[1771]: warning...
  13. Proxmox Mail Gateway under attack, sending emails wildly out with foreign domains

    Already disabled as accounts on my mail server, I ended all sessions and instructed users to change a password, requiring a certain level of complexity. Thank you for your attention.
  14. Proxmox Mail Gateway under attack, sending emails wildly out with foreign domains

    Good Morning, I am experiencing some kind of attack on my Proxmox Mail Gateway, an internal email account of mine is wildly sending emails with strange domains and I can't identify what it is. It seems to me it's like a robot that makes this kind of attack, it affected two of my email...

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