The mailserver suite with the 'moo' – 🐮 + 🐋 = 💕
News and Infos
2023-09 Moohoo everyone!
We are back with a tiny mailcow update that solves the problems with macOS 14 (Sonoma) and SOGo.
That’s all there is this month. More content will come in early October with update 2023-10.
Changelog [SOGo] Update to 5.9.0 The full changelog, including the individual commits, is available on GitHub at any time for those interested: https://github.com/mailcow/mailcow-dockerized/releases/tag/2023-09
As always, a huge thank you to our great mailcow community for your continued support and valuable feedback.
Moohoo - Good News, everyone!
With the Nightly Branch, it is now possible to use an external Identity Provider as an additional authentication source.
mailcow utilizes the OIDC (OpenID Connect) protocol to authenticate only mailbox users.
To enable this, we have made some changes to the way authentication works.
Let’s talk about what has changed, what we had in mind, and what we plan to add in the future. Of course, we will also show you how to use the new feature.
No you are not dreaming, yes you are awake and no this is no joke:
mailcow’s ARM64 support can now be tested in nightly as BETA!
2023-08 (Release 3rd August 2023) Moohoo everyone!
I hope you are not tired yet of performing updates.
The 2023-08 Release is here, and it contains some hotfixes for the new Spamhaus DQS feature.
If you are not using Spamhaus DQS and haven’t experienced any issues with the 2023-07 update, you don’t have to install this update.
As this release only contains hotfixes, there is not much to say about it, except for one thing.
2023-07a (Release 31th July 2023) There are some fixes for the 2023-07 update. Most of the fixes are related to the latest changes regarding the DNS blocklists of the postscreen in Postfix:
Changelog dns_blocklists.cf isn’t appended to main.cf and therefore ineffective… Fix Reponse Code for ASN Checks [Postfix] Reimplemented option for custom dnsbls [Postfix] Added dns_blocklists.cf for customizations [Postfix] update postscreen_access.cidr Update SOGo to 5.8.4 Fix spamhaus query domains (.net only) As always, the full changelog with the individual commits is available on GitHub: https://github.
It has been more than a month since you heard from us and today we have a shadowdrop as an update.
Since we have a few things to discuss and want to communicate directly in the future, we came up with a section called What’s up?.
Today we start with the first topic, namely ARM64:
Originally we announced to have mailcow ARM64 ready by June 2023. Obviously that didn’t work out so well.
With the mailcow update 2023-07, there’s a somewhat significant change regarding Spamhaus DNS blocklists.
This blog post is here to provide information for those interested.
As announced in the last blog entry (dated 30.05.2023), here is the detailed CVE for security patch 2023-05a.
If you have not yet updated, you should do so as soon as possible, because an exploit is now publicly available on the Internet that could be exploited by authenticated users on your mail server.
A very urgent security update for mailcow (2023-05a) has just been released.
We urge you to apply this update as this vulnerability has been lurking in the code for quite some time (before 2020).
It’s on with our updates for mailcow, this time (once again) mainly to improve the overall stability and usability of the stack, but also to improve IMAP performance.
Changelog For Dovecot, the maildir_very_dirty_syncs option has been enabled by default. This allows much faster IMAP retrieval than before. In the mailcow docs we have created a new page about this. This describes the exact reasons for the performance boost as well as cases where the feature should be disabled: https://docs.