Neue Schulungsreihe: Mailserver sicher betreiben

Die #HeinleinAkademie startet eine Kursreihe rund um moderne #Mailserver-Architekturen. Im Fokus stehen nicht nur einzelne Komponenten wie #Postfix, #Rspamd, #Dovecot oder #Stalwart, sondern das Zusammenspiel der Systeme – von klassischem Setup bis zu skalierbaren, hochverfügbaren Umgebungen.

Du möchtest deine Expertise über Mailserver vertiefen? Die ersten Schulungen sind jetzt buchbar – weitere folgen ab Ende 2026:

👉 https://www.heinlein-support.de/news/sichere-mailserver-schulungsreihe-heinlein-akademie

🚀 Deploy #Virtualmin on #AlmaLinux #VPS (5 Minute Quick-Start Guide)

This article provides a how-to guide to deploy Virtualmin on AlmaLinux VPS.
What is Virtualmin?
Virtualmin is a powerful open-source web hosting control panel built on top of Webmin.

It supports:

Multi-domain virtual hosting
Apache or Nginx
PHP ...
Continued 👉 https://blog.radwebhosting.com/deploy-virtualmin-on-almalinux-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #letsencrypt #mariadb #spamassassin #controlpanel #postfix #dovecot #selfhosting #phpfpm #clamav #certbot #bind #selfhosted

Fedora Linux 43 exposes 20-year-old Microsoft Outlook security failure
https://nerds.xyz/2026/06/fedora-43-outlook-security-bug/

A changed default setting for Dovecot reveals that Outlook didn't use TLS since 2007. Blast radius unknown. Has this never been audited?

#outlook #microslop #microsoft #dovecot #security

Fedora Linux 43 exposes 20-year-old Microsoft Outlook security failure

https://fed.brid.gy/r/https://nerds.xyz/2026/06/fedora-43-outlook-security-bug/

I get why #NixOS is moving to RFC-42-style settings but I miss being shielded from all these crazy configuration formats. I'm stuck on 25.11 while I rewrite my #Dovecot settings. And I haven't even tried sorting out Dovecot 2.4 which broke backwards compatibility.

Developers: Please stop inventing your own configuration language! I guarantee it will suck more than the existing options. Even better, use an existing programming language as your configuration format, like Lua or Guile. Please!

While waiting for my #IronMaiden concert to begin, I prepared a new #wormhole release for #Dovecot .

https://codeberg.org/errror/wormhole/releases/tag/v0.12

With the help of René Koch I managed to build #RedHat packages, too. See https://wormhole.mpi-klsb.mpg.de/repository.html for details, how to use them.

🚀 Deploy #Virtualmin on #AlmaLinux #VPS (5 Minute Quick-Start Guide)

This article provides a how-to guide to deploy Virtualmin on AlmaLinux VPS.
What is Virtualmin?
Virtualmin is a powerful open-source web hosting control panel built on top of Webmin.

It supports:

Multi-domain virtual hosting
Apache or Nginx
PHP ...
Continued 👉 https://blog.radwebhosting.com/deploy-virtualmin-on-almalinux-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #controlpanel #dovecot #phpfpm #clamav #mariadb #selfhosting #spamassassin #postfix #selfhosted #bind #letsencrypt #certbot

🚀 Deploy #Virtualmin on #AlmaLinux #VPS (5 Minute Quick-Start Guide)

This article provides a how-to guide to deploy Virtualmin on AlmaLinux VPS.
What is Virtualmin?
Virtualmin is a powerful open-source web hosting control panel built on top of Webmin.

It supports:

Multi-domain virtual hosting
Apache or Nginx
PHP ...
Continued 👉 https://blog.radwebhosting.com/deploy-virtualmin-on-almalinux-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #controlpanel #clamav #mariadb #certbot #selfhosted #selfhosting #bind #postfix #dovecot #phpfpm #spamassassin #letsencrypt

🚀 Deploy #Virtualmin on #AlmaLinux #VPS (5 Minute Quick-Start Guide)

This article provides a how-to guide to deploy Virtualmin on AlmaLinux VPS.
What is Virtualmin?
Virtualmin is a powerful open-source web hosting control panel built on top of Webmin.

It supports:

Multi-domain virtual hosting
Apache or Nginx
PHP ...
Continued 👉 https://blog.radwebhosting.com/deploy-virtualmin-on-almalinux-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #bind #selfhosting #postfix #clamav #mariadb #certbot #spamassassin #controlpanel #letsencrypt #selfhosted #dovecot #phpfpm

Ich habe keine #mailcow am laufen [ist sehr cool, aber ich hatte noch keine zeit zum ausprobieren].

Meine #mailserver laufen alle seit über einer Dekade mit #postfix und #dovecot unter #debian.

//aus aktuellem anlass