proxmox mail gateway

  1. A

    Greylist in O365 - proxmox setup

    Hi, I had the greylist active on my Proxmox mail gateway, now that is disabilitated I can't still receive emails from some domains. Is it possible and where can I clean the greylist's database? I already tried to restart the server, in network I already added the O365 networks and whitelisted...
  2. A

    Proxmox Mail Gateway as out going SMTP

    Hello, I try to set up Proxmox Mail Gateway for out going SMTP, with smart house configuration on Relaying. My question and confusion while using Proxmox Mail Gateway is Relay Domains, what value should I enter in Relay Domains so that all out going transactions can be sent. The value i...
  3. Z

    PMG: upgrade from 7.3-8 to 8

    Hello! I'm trying to upgrade PMG but it seems there's an issue with some repositories. The source.list and source.list.d/pve.list has the following content: deb bookworm main contrib deb bookworm-updates main contrib # security...
  4. V

    [SOLVED] proxmox let in phishing mail

    My colleague just received this mail 1694008476810.png This is the mail log Sep 6 04:54:40 mail postfix/smtpd[385982]: connect from[] Sep 6 04:54:41 mail postfix/smtpd[385982]: Anonymous TLS connection established from...
  5. W

    [SOLVED] DKIM Cname

    Hello now that we have gotten DKIM signing to work im sitting here thinking what if worst case senario came to pass.. all devices gets encrypted. handing out the TXT record that the users need to enter into there dns servers what if it changes so you have to start from scratch. this got me...
  6. T

    cluster node outside internal network - is it possible?

    hi, I currently use following setup: - router(Mikrotik RB3011 UiAS)) with 2 public IPs (PublicIP1 and PublicIP2), from diffrent ISPs - Internal network with addresses in - VM host(dedicated machine) - Proxmox Mail Gateway Master on (Router NATs PublicIP1:25 here)...
  7. J

    /var/run/clamav missing in brand-new installation on LXC

    Hello everyone! I just installed PMG 7.2 on a LXC with the Debian 11 Bulllseye template in my 4-node Proxmox cluster by using the following command: apt install libclamunrar p7zip-rar proxmox-mailgateway-container Then I configured a number of aspects via the Configuration: Mail proxy and...
  8. C

    [SOLVED] ClamaV did not catch virus

    Hi Guys, We use proxmox mail gateway but seems like clamaV did not catch the virus: MIME type: application/octet-stream File name: RFQ#1180004562&1180004538.gz File size: 187.80 kB Virus name: VIRUS: Trojan.Zmutzy.867 Antivirus: Kerio Antivirus engine version/Signature count: (AVCORE v2.2...
  9. S

    [SOLVED] Kunde erhält NDR "403 4.7.0 encryption too weak 0 less than 128"

    Hallo Freunde, ich habe einen Kunden, wenn der mir eine Mail schickt bekommt er seit dem 20.6.22 einen NDR darin steht, dass der Zustellungsstatus der Mail, dieser ist: 403 4.7.0 encryption too weak 0 less than 128 Daraufhin habe ich per // email / test getestet. Die haben mir dann...
  10. F

    Proxmox Mail Gateway regex from and to

    Hi, I would like to block all email arriving to and where sender is not or I've tried to do like the following under who-object but looks like doesn't work...
  11. O

    DNSBL Resolution Issues

    I have one DNSBL that always has issues, not sure where the issue lies. Possibly DNS, but I'm not 100% sure. Looking for some ways to troubleshoot to verify the issue. You can see the warnings here for spamrats: Apr 14 17:22:46 smtp postfix/postscreen[3157]: warning: dnsblog reply timeout 10s...
  12. O

    [SOLVED] Mail Proxy Whitelist Regex

    Hello, I'm trying to verify that my regex looks good, in theory, it should be fine, but I'm seeing this in the logs: Apr 13 18:18:11 smtp postfix/smtpd[1039]: warning: regexp map /etc/postfix/senderaccess, line 1: Invalid preceding regular expression Apr 13 18:18:11 smtp postfix/smtpd[1039]...
  13. N

    How can i block .zip and .rar files with certain size ?

    Hi, I want to know a way to block .zip and .rar files with certain size (e.g under 100Kb). I'm currently using Proxmox mail gateway 7.1-1 If possible, please tell me. Thanks a lot , Best Regards
  14. CarstenMartens

    [SOLVED] Mail in Blacklist eintragen

    Guten Morgen, wir wollen unser Mailgateway von ASSP auf PMG umstellen. Das Email-Empfänger von der PMG als Spam getagte Mails in die Whites/Blacklist eintrage geht - über die Mail von der PMG - einwandfrei. Wie können Email-Empfänger aber Mails, die von der PMG nicht als Spam erkannt wurden, in...
  15. A

    How can I block .zip and .rar files that contain only .exe files?

    Hello, I want to know a way to block .zip and .rar files containing only .exe files through Proxmox Mail Gateway. Allow .zip and .rar files that do not contain .exe files. Thanks. Best regards.
  16. J

    Outgoing mails

    Hi, I've configured Proxmox Mail Gateway to filter de incomming messages from a remote server but I don't know how to do the same from the outgoing messages. I hope that you can help me.
  17. T

    Appear email from another domain name in tracking center

    Hi guys, Recently, I saw a strange domain name appear in the tracking center that is not mine. Same as attached picture. Appeared a domain name send mail to But it is reject In the mail proxy I just only set up my only domain name is i think it looks like...
  18. R

    Custom Branding for Domains replayed through Gateway

    Just wanted to see if there is a way to brand the quarantine portal for LDAP users depending on the domain.
  19. A

    [TUTORIAL] How to setup? Iredmail behind the PMG, which is installed on public IP PVE.

    Hi, I'm trying to get access of my Iredmail server through PMG to public access. I want to access my redmail on public IP with specific port I'm able to access it on iredmail server and LAN (Within PVE all VM's). PVE is assigned with public IP. 182.69.X.X PMG is private IP...
  20. X

    Proxmox Mail Gateway 5.2-7 Postfix failed

    Hallo, von jetzt auf gleich ging mit mal der Service postfix nicht mehr. Bei dem Dienst steht Failed "Postfix Mail Transport Agent (instance -) und wenn ich versuche den Dienst manuell zu starten, kommt immer "command 'systemctl start postfix @-' failed: exit code 1. Bin um jede Hilfe dankbar...


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