ivenae's latest activity

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    ivenae replied to the thread Help configuring SPAM scoring with RBL.
    This is normal in the default setup. The default settings are generally very conservative, so you may need to adjust some of your scores under "Spam Detector" -> "Custom Scores" (don’t forget to click Apply). You can search for filters in the...
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    ivenae replied to the thread [TUTORIAL] Block Google Groups, Firebasemail/Firebaseapp, Googleusercontent.com in Postfix (before DATA).
    This script will do an awesome filterjob: - filters very early (before DATA) with very little CPU power - high filter-rate - more or less no false positive Installation identically to first post, additional: apt install python3-spf...
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    ivenae replied to the thread Handling fake own From:.
    I have some similar solutions to this. This rule is designed to detect potential domain spoofing by comparing the visible From header with the SMTP envelope sender (MAIL FROM). It triggers when an email claims to come from one of the...
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    ivenae replied to the thread How added GeoIP.
    I made a description here: https://forum.proxmox.com/threads/installation-advisory.182175/
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    ivenae replied to the thread [SOLVED] Domainliste mit Wildcard für subdomains.
    Dann verwende einfach PCRE Regex Kommentare, um dir deine Notizen zu hinterlegen ;-/ (?#...) [a-z0-9]{1,3}\+bncB[A-Z0-9]{25,}@.*(?# Google Groups)
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    ivenae replied to the thread [SOLVED] Domainliste mit Wildcard für subdomains.
    Man muss nicht nach dem tag suchen, man kann auch nach Absenderadresse filtern. Der Regex, der auf alle Google Groups nachrichten matcht lautet: [a-z0-9]{1,3}\+bncB[A-Z0-9]{25,}@.*
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    ivenae replied to the thread Cannot get Welcome lists to work.
    Maybe you deactivated the welcomlist Action Object in Mail Filter?
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    ivenae replied to the thread [TUTORIAL] Installation Advisory.
    Spamhaus SA Filter TVD_MIME Filters Beware: SA Filters could add, an email could pop up in multiple SA lists. It is also important to pay attention to the order of the filters. DNSBL and policyguard filter the largest volume. The...
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    ivenae replied to the thread [TUTORIAL] Installation Advisory.
    "blocked using" is the sum of all DNSBL policyguard google groups filter (filtertered google groups only) policyguard google user content: this filter filters HELO strings. i added turbo-smtp, googleusercontent.com and xqueue.com...
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    ivenae replied to the thread [TUTORIAL] Integrate rspamd as custom script.
    i reply to your post on my advisory page
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    ivenae replied to the thread [TUTORIAL] Installation Advisory.
    I block (reject) on Score = 7. No mark, no quarantine.
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    ivenae replied to the thread [TUTORIAL] Advancing Proxmox Mail Gateway (especially Spam and Virus Detection).
    I have also started a new topic for proxmox MG 9.0 https://forum.proxmox.com/threads/installation-advisory.182175/ I also wrote a policy filter for a large amount of google spam here...
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    ivenae replied to the thread Blocking TLD.
    I recently answered a few questions here on this topic. It seems that most people are not aware of it, but this is the intended behavior. All emails go through the entire SA filter chain. At the end of this chain, the action object is executed...
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    ivenae replied to the thread Intel e1000e Regression Causing Proxmox Host Freezes — Resolved by Removing Onboard NIC.
    I had the same problem on one host yesterday. Thought this was solved over a year ago. modify /etc/network/interfaces with a post-up command helped. iface eno1 inet manual post-up ethtool -K eno1 tso off gso off
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    ivenae replied to the thread Is possible to quarantine and then deliver the email ? (both actions).
    I abused the custom script for those actions. Use a custom script: #!/usr/bin/env bash set -euo pipefail # PMG custom check API v1: args: APIVERSION QUEUEFILENAME if [[ $# -ne 2 ]]; then echo "usage: $0 APIVERSION QUEUEFILENAME" >&2 exit 1...
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    ivenae replied to the thread Reject Unknown Senders (reject_unknown_sender_domain) - Whitelist.
    Reject unknown senders ("domain not found") or reject unknown client ("cannot find your hostname") is a postfix/postscreen feature and the decision to reject is made long before the SA filter and the Mail Filter -> Who Object -> Welcomelist. You...
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    ivenae replied to the thread Cannot get Welcome lists to work.
    The Mail Proxy -> Welcomelist is a postfix senderaccess welcomelist. It is a "Trusted Host" feature that prevents getting blocked in postscreen, i.e. for SPF or DNSBL tests. It has nothing to do with the SA checks you did above. For whitelisting...
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    ivenae replied to the thread [TUTORIAL] Installation Advisory.
    A big thank you goes to the giants whose shoulders I stood on: christian-b for the rspamd integration: https://forum.proxmox.com/threads/integrate-rspamd-as-custom-script.159110/ heutger zolthar and stoiko ivanov for the GeoIP integration...
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    ivenae replied to the thread [TUTORIAL] Installation Advisory.
    Now we have exhausted all third-party plugins. But we can also create our own SA filters. One of the biggest nuisances is "BCC spam". Someone creates a freemail account with a provider that has no outgoing limit and sends spam emails where all...
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    ivenae posted the thread [TUTORIAL] Installation Advisory in Mail Gateway: Installation and configuration.
    I've been intensively working with Proxmox MG over the past few days and found the documentation not always helpful. My spam has been reduced by 95%, and I would like to explain here what I changed compared to the out-of-the-box installation to...
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