I have sent you what I can @Stoiko Ivanov via email. If you can give advice how to capture failing message I maybe can provide more info. I am having a hard time finding the message to replicate this issue with as messages that are failing are also not showing in the tracking center...
The reason is this thread https://forum.proxmox.com/threads/block-encrypted-attachments-just-encrypted-zip-xlsx-xls-for-some-domains.117645/#post-509196
I will make a summary in that thread when I am finished configuring everything.
In the end I had to spin up a new pmg instance just for this...
It was faster for me to just do a clean install of new proxmox instance. I was hoping I could reuse my existing configuration but I was wrong. Clean install and setup everything manually. It would probably take me more time to figure out how to use the API then to just do a clean install and...
How can I make it block when clamav detect virus detected: Heuristics.Encrypted.Zip (clamav)
It's probably not blocking because it's not adding S/A score as I have removed all the rules... damn
Hello,
I have a case where I would like to use only one manually created test.ndb file for clamav scanning. I would like to disable all other integrated signatures and apply only this .ndb file for scanning.
I have already disabled clamav-freshclam service with the command below
systemctl mask...
I have a case where I would like to disable spamassassin updates all together.
What is the best way to do this so it will be persistent even after pmg upgrades?
Thanks.
Hello,
Just want to remove entries from https://1.2.3.4:8006/#pmgMailProxyConfiguration:whitelist (Configuration - Mail Proxy) by removing from file instead of GUI as there is too many lines to do it via GUI.
I have removed the entries in the following files but that does not seem to be...
I am seeing similar issue in the logs but no messages stuck queue...
Nov 10 19:33:26 mx.example.com pmg-smtp-filter[1354]: 121503636D43F36F0B6: SA score=6/5 time=2.420 bayes=undefined autolearn=disabled...
@zolthar thanks for the write up.
It's very important that the virus checks are executing on attachments as that is one of the most common attack vectors on email.
I am currently testing code from here https://forum.proxmox.com/threads/pmg-6-1-how-to-add-antivirus.67006/page-3#post-448915 but...
Is this even possible? looking at the manual does not seem to be.
I would need just encrypted zip, xlsx, xls for some domains is it even possible?
I am guessing I can set this only globally and only for all encrypted files?
Seeing this already on legitimate messages so we can't just increase...
Can someone give information about how blocked messages would look like if this setting is enabled? How is it shown in the logs if message is blocked with this setting?
EDIT:
looks like it's this
Helo command rejected: need fully-qualified hostname;
Can someone give information how it this shown in the logs?
For example Reject unknown clients in the logs is shown as:
Client host rejected: cannot find your hostname
Is this correct?
What about Reject unknown senders how is that shown in the logs?
EDIT: Looks like it's this
Sender address...
Hello,
So I want to make sure that people who are trying to send messages and are blocked (because virus detected) get notified that their message was blocked. If the message that contains virus is quarantined or blocked the sender is not notified of delivery failure. I guess that is just how...
Hello,
Is it possible to enable DKIM signing on postmaster@example.com messages that come from the filter. If I look at GMAIL I see that the messages are not signed by DKIM.
From: postmaster@example.com Using MIME-tools 5.509 (Entity 5.509)
Subject: test DKIM SPF
SPF: PASS with IP...
Hello,
Can some help out how to configure proxmox to remove compressed attachments that contain .exe, .msi or other executable, dangerous files?
Right now I have a huge list of attachments that get removed but I would also like to apply this rule to all compressed attachments that contain files...
Hello everyone I am looking for current information about how are you all running ESET on your proxmox installations.
There is a lot of outdated information and unclear instructions how to configure it, how it works and what are it's functions when it's implemented.
I am only looking for...
I was looking before implementing DKIM how to solve this on DNS side and I have done this:
We do not directly set a DKIM on domains we use CNAME that points to our DKIM record on our domain.
Example dns records on our company root domain:
_dkim1.example.com. IN TXT "v=DKIM1; h=sha256...
Anyone has this configured and can share their config. I want to monitor how clamav and spamassassin updates are executing and if there are any errors.
A simple email notifications with information of the execution in the body would be great.
Thanks!
You have a few options you can do to improve your filtering. First follow https://pmg.proxmox.com/wiki/index.php/Getting_started_with_Proxmox_Mail_Gateway#Improving_Spam_Detection
Looks like you are not using DNSBLs for blocking. The IP from where your spam originates is on many blocklists...
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