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Release date for a compatible version of ispconfig for Ubuntu 26.04

invalid@example.com (lnxgs) — Sat, 11 Jul 2026 12:39:58 +0000

Hi everyone, is there a release date for a compatible version of ispconfig for Ubuntu 26.04?
I saw that some code for this Ubuntu version has already been released to the development branch, so I imagine it won't be long now...
Any critical issues (like with Debian, where external repositories need to be enabled to support different versions of PHP)?

Thank you all

Accidentally deleted Postfix

invalid@example.com (Indieben) — Sat, 11 Jul 2026 08:34:19 +0000

Hi, what is the best route to get postfix working again when it's accidentally deleted by installing an incompatible program please. I'm running ISPConfig Version: 3.3.1p1 on Debian GNU/Linux 12 (bookworm). Current positition is i'm getting no inbound or outbound mail.
Secondly, i've downloaded Email backups of the Postfix queue and Emails between the date of the last VPS backup image and the time of running a restore - what is the best way of reimporting the Emails please? Simply reverting...

Accidentally deleted Postfix

How should I configure an intranet between Exim4 and ISPConfig 3 mail server?

invalid@example.com (concept21) — Fri, 10 Jul 2026 13:44:21 +0000

Hello ISPConfig 3 Experts,
My ISPConfig v3.3 has been running for a few years and it is still running very strong.

Then, these days I have built a new Ubuntu 26.04 VPS for my iot hardware portal. It requires an email service to send alert emails to my future customers.
So I install Exim4 Lite server. It is good enough for local mail. I do not need or want to configure it as a full internet mail server. I plan to use my present ISPConfig 3 email server as the recipient relay host....

How should I configure an intranet between Exim4 and ISPConfig 3 mail server?

Function as both an “email router” and “local domain”

invalid@example.com (Trollineto) — Fri, 10 Jul 2026 13:34:17 +0000

Hi all, till and Ignacio

Why isn't it (any longer?) possible to function as both an “email router” and a “local domain”? I've been using this feature for at least 15 years.
I do this for small businesses. They have a huge number of emails and want to keep them on site. They only have a floating IP address.

In...

Function as both an “email router” and “local domain”

HTTP3 QUIC With Myguard APT In ISPConfig3 Nginx Web Server

invalid@example.com (ahrasis) — Fri, 10 Jul 2026 11:02:15 +0000

I am testing http3 quic in one of my ISPConfig3 nginx server using Myguard which is working good for quite some times now. I am sharing it but only play with this, if you know what you are doing, also where and when to do it.

Firstly, follow the How to add the myguard APT repository for Debian and Ubuntu which is basically three main steps:

1. Install its repository keyring.

2. Add the repository source....

HTTP3 QUIC With Myguard APT In ISPConfig3 Nginx Web Server

Errors after upgrading from Debian Bullseys to Bookworm

invalid@example.com (Nomis) — Fri, 10 Jul 2026 10:26:29 +0000

Shall the script create a ISPConfig backup in /var/backup/ now? (yes,no) [yes]:

Creating backup of "/usr/local/ispconfig" directory...
Creating backup of "/etc" directory...
Creating backup of "/root/.acme.sh" directory...
Creating backup of "/etc/letsencrypt" directory...
Checking MariaDB version 10.11.14 .. OK
Checking ISPConfig database .. mysqlcheck: unknown variable 'max_allowed_packet=500m'
OK
ERROR 1698 (28000): Access denied for user 'root'@'localhost'
Unable to call mysql command...

Errors after upgrading from Debian Bullseys to Bookworm

ISPConfig (3.3.1p1) und Let's Encrypt SSL for the Panel itself

invalid@example.com (hkoepke) — Fri, 10 Jul 2026 09:46:00 +0000

We created a new ISPConfig Server based on Debian 13.5 (trixie) and use the auto installer with Apache for ISPConfig.

after that we setup a Domain and enable SSL and Let's Encrypt. so for that Domain it works fine.

but we wan´t to have Let's Encrypt also for the panel itself.
so we follow up the tutorial "securing-ispconfig-3-with-a-free-lets-encrypt-ssl-certificate"

we see that the path "/etc/letsencrypt/" is not having a "live" folder and also no folder with the hostname.

so if we...

ISPConfig (3.3.1p1) und Let's Encrypt SSL for the Panel itself

DKIM Signing challenge

invalid@example.com (SpeedyB) — Fri, 10 Jul 2026 08:05:15 +0000

I was finding that with the latest upgrade to Trixie DKIM signing was failing and mails were moved to junk or quarantined.
Apparently when RSPAMD decides if you are allowed to adapt DKIM Signing, the account you are logging on with must be in the same domain.
so user1@domain1.tld can only sign for domain1.tld and not for domain2.tld which they also own.

Since I have multiple clients who are using domain aliases, or receive everything in their one mailbox and sent via...

DKIM Signing challenge

Can I run Docker inside an OpenVZ VPS?

invalid@example.com (concept21) — Fri, 10 Jul 2026 07:44:48 +0000

Okay, now I am considering to run a small Cluster (a group of 2 or 3 VPS) for my coming postgresql servers.

With reference to today's hardware price, I need to squeeze my cost to the lowest. So, I consider to buy several VPS built on OpenVZ. I heard that OpenVZ VPS is cheaper and faster than KVM VPS.

Now, my questions are:

Can I choose Ubuntu as the OpenVZ VPS's OS?
Can I install Docker inside this OpenVZ VPS?

Yours faithfully.

Rspamd Configuration vs. the ISPConfig3 Admin GUI

invalid@example.com (Shyciii) — Fri, 10 Jul 2026 07:24:33 +0000

Hello,
Our Ispconfig3 servers were still running Amavisd, and we have now switched to Rspamd based on the following article:
https://www.howtoforge.com/replacing-amavisd-with-rspamd-in-ispconfig/
Although the article is somewhat outdated (as it refers to Debian 13), the issue was easily resolved.
However, we ran into a problem (which exists on every server running rspamd) where it classifies even completely valid emails as spam (even official bank and postal correspondence). I...

Rspamd Configuration vs. the ISPConfig3 Admin GUI

ISPConfig Multi-Server - Let's Encrypt does not generate certificates for websites hosted on the sec

invalid@example.com (Deyvid) — Thu, 09 Jul 2026 05:47:11 +0000

Hello everyone,

I'm experiencing an issue with an ISPConfig Multi-Server setup and, despite running several tests, I haven't been able to identify the root cause.

Environment

ISPConfig 3.3.1p1
Ubuntu 22.04
Multi-Server setup
mail01 (Master)
web01 (Web Server)

Problem
When I enable the following options in ISPConfig:

SSL
Let's Encrypt

and save the website, the certificate...

ISPConfig Multi-Server - Let's Encrypt does not generate certificates for websites hosted on the sec

Install Mariadb server

invalid@example.com (docryan) — Tue, 07 Jul 2026 19:47:13 +0000

Hi,
Can I use the auto installer script to install a new standalone database server?

A full REST API for ISPConfig (OpenAPI, all modules) — looking for testers

invalid@example.com (tio289) — Tue, 07 Jul 2026 12:51:20 +0000

This request comes up a lot, so I wanted to share a project I've built to actually solve it.

As many have pointed out, the official "REST" endpoints are really just a thin wrapper around the old SOAP remote API - limited coverage, no OpenAPI/Swagger spec, and a lot of features simply aren't exposed. I wanted something that treats a real REST API as the goal, not an afterthought.

So I built ispconfig-rest: a modern, contract-first REST API for ISPConfig 3.3, on Laravel 12.

~270...

A full REST API for ISPConfig (OpenAPI, all modules) — looking for testers

I have a suggestion regarding the Document Root setting

invalid@example.com (Matz Sor) — Tue, 07 Jul 2026 12:18:46 +0000

Hello everyone,

I have a suggestion regarding the Document Root setting, which is reflected in /etc/nginx/sites-available/{domain.vhost}.

It would be very helpful if the Document Root field in the Sites form:

Document Root

/var/www/clients/client0/web8

could be changed to an actual...

I have a suggestion regarding the Document Root setting

SSL issue on hostname for ISPconfig

invalid@example.com (kevin.J) — Tue, 07 Jul 2026 11:37:22 +0000

Hi,

I am updating ISPconfig by --force to reconfigure SSL, and it shows me the error

Checking / creating certificate for server.smarterwebhosting.com
Discovered certbot version 2.9.0 with certificate home /etc/letsencrypt
Discovered acme.sh version 3.1.4 with certificate home /root/.acme.sh
Using certificate path /etc/letsencrypt/live/server.smarterwebhosting.com_ecc / /etc/letsencrypt/live/server.smarterwebhosting.com_ecc/cert.pem
Server's public ip(s) (64.32.11.42) not found in A/AAAA...

SSL issue on hostname for ISPconfig

Wrong passwort reset URL

invalid@example.com (Blubmann1337) — Tue, 07 Jul 2026 08:14:56 +0000

Hi everyone,
I am having a problem where ISPConfig is providing me with an incorrect URL when I use the password reset feature. In one ISPConfig environment, the reset email includes the servers internal IP address. In another environment, the address is included, but with port 8080. How is this URL generated, and where can I adjust it?

ISPConfig REST-API Standard

invalid@example.com (Aeon112) — Mon, 06 Jul 2026 21:30:51 +0000

Hey there!
are there any Plans in the Future to make ISPConfig fully REST Compatible with the OpenAPI Standard? I think it's much easier to handle and Programm than the SOAP API, especially for connections to other languages like GO, Ruby, Python... I can try to Implement an REST API for ISPConfig if this is desired? OpenAPI is the defect Standard for REST and Swagger.io. What are your opinions about rest?

ISPConfig REST API

invalid@example.com (Aeon112) — Mon, 06 Jul 2026 21:30:17 +0000

Hey,
are the Docs in the Folder Remoting-Client also for the Json API or where can I get a detailed Docs for the Json/REST API? I wan't to create a Composer project for the ISPConfig API to include it in Laravel or Symfony Applications, but I don't find any Howtos or tutorials for the ISPConfi REST API. Thanks!

Greets

Rspamd 4/4.1 compatibility

invalid@example.com (noonecanhide) — Mon, 06 Jul 2026 09:34:56 +0000

Is the latest ISPConfig-version (Debian 13) compatible with Rspamd 4.1 ? I would like to test the new neural features.

NSEC3 not getting records generated.

invalid@example.com (Macrolon) — Mon, 06 Jul 2026 01:55:18 +0000

I finally figured out how to do DNSSEC and DS records so I get zero erros on DNSSEC validation but I am getting Proof of Non-Existence errors. I cannot find any NSEC or NSEC3 records in bind files or using dig.
ISPConfig Version: 3.3.0p3
Debian GNU/Linux 10 (buster) yes old, will find a guide to upgrade real soon now.
Since ispconfig3 I think is supposed to handle this I did not want to go farther in chopping on it.
ifconfig displays IP address but parsing it appears to be painful.
Thanks....

NSEC3 not getting records generated.