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I just read that zimbra uses postfix. so i would check if the IP or the Subnet of your Mailgateway is listet in your mynetwork in main.cf under /etc/postfix/ I cannot really tell you if thats the common use but still worth a try. since the ips listet in mynetwork are allowed to relay your...

In your Zimbra Logs it says the Mail comes from 192.168.3.24. I guess you need to tell Zimbra that thats your Relay and it has to take the next IP as real sender IP. That could be the Reason for the reject. Ive seen this on other Mail Gateways. They called it "True Source IP"

So your PMG tries to verify the receiver because we see this line: Jun 18 08:25:50 mail postfix/smtpd[33249]: NOQUEUE: filter: RCPT from unknown[192.168.3.24]: <double-bounce@sanclxx.cl>: Sender address triggers FILTER smtp-amavis:[127.0.0.1]:10026; from=<dou$ And it seems your Zimbra Server...

Can you post some Logs from the Tracking Center? After you anonymised the data.. and just to be sure: Double check your Domain in Configuration --> Mail Proxy --> Relay Domains And can you check the Zimbra logs? What does the log of the Mail Server say?

Arent you looking for the exact same thing as this: https://forum.proxmox.com/threads/spam-alerts-every-3-hours.44445/ It's solved there.

I didnt check my logs but ive got the following: under Configuration --> Spam Detector --> Quarantine --> Authentication, i got "LDAP or Ticket" under Configuration --> User Management --> LDAP --> LDAP Profile --> Users of <LDAP Profile> im seeing my users. if that all is correct and the same...

What happens when you disable the "Verify Receivers"?

I haven't double checked the lower or upper case. I found that in a Forum and tested it. It worked, so i didn't pay any attention to the lower case. But I will change it to your template. And to INFO and not WARN. Thanks for that. :)

Hi. I created the file /etc/postfix/header_checks with the following content: /^subject:/ WARN /^to:/ WARN /^from:/ WARN /^Subject:/ WARN /^To:/ WARN /^From:/ WARN After that u need to tell that postfix. Postfix' config is build on startup so it...

Thanks, Thats why i dont want to use it that way and I then wanted to set it up so that the receiver gets informed but that would end in many spam mails of my own... so i really dont have any use for those inform mails. Since the options in filtering are just a few tbh. But simple

I have the exact same Problem. My workaround was to setup the subdomain as Maildomain. So my Server knows the sender. But I'm not relaying it. Would be nice, if that can be changed. additional info: Its only the Proxmox Status Report that gets send from postmaster@hostname.hostdomain.tld

Ok, Then I'll try to stick to the automated answers and see if that works for me. Thanks for the quick answer :)

I guess you cannot receive any Mail at all right now so to be sure: - Is your domain in configuration --> Mail Proxy --> Relay Domains ? - is the IP and the Port in configuration --> Mail Proxy --> Relaying correct? - Im guessing u have "Yes (550)" activated in configuration --> Mail Proxy -->...

Thanks for the input. I would want to reject with general messages like the one u quoted. except in special cases. But right now i cannot reject and as heutger said in the first post, I'd also like to request that feature. I couldn't find it anywhere else. How do i do that the right way or...

Im also interessted in that. Since the whole System isnt usable on any of my mobile devices i wanted to check if i could do something about that. (I cannot scroll vertical. Neither admin nor quarantine interface)

Hey, thanks for the quick answer. :) The problem is, that it was not rejected. it was blocked and an info mail is being sent. It should be rejected so the sending server informs the sender of the mail. At least 2 other mail gateway products i used before all had that included and recommended it...

I dont like silently blocking either. I'd be more interessted in rejecting since the sender gets informed. I cant use block for content that could be false-positives.

Thx for the reply. But it isnt solving my problem -.- ive seen that post before. im using windows and linux. so if im running openjdk or icedtea on linux it would propably solve it for now. but my windows client doesnt. i just want to accept my certs or better switch them. the certs are as...

Hey there! first of all. sorry for my bad english.. im trying my best to be understand. Im running the Version 3.1-20 and i have some probs with my certs. Ive set up a CA VM for my local domain and got it working for my proxmox maschine. Ive imported my root ca and signed my request for my...