Het programma Postfix is een opensource mta, ook wel mailserver genoemd, voor Unix- en Linux-systemen. Postfix werd oorspronkelijk ontwikkeld als een snelle en eenvoudiger te beheren tegenhanger van sendmail. Voor meer informatie verwijzen we jullie door naar deze pagina, bomvol met handleidingen en documentatie. Wietse Venema heeft een nieuwe stable-tak vastgesteld en hier de eerste versie van uitgegeven. Het versienummer is vastgesteld op 2.5.0 en voorzien van de volgende aankondiging op de mailinglijst:
Postfix 2.5.0 stable release available
Postfix stable release 2.5.0 is available. After Postfix was declared "complete" with version 2.3, the focus is shifting towards improving the code and updating it for changing environments.You can find Postfix version 2.5.0 on the mirror sites listed here.
- TLS (SSL) support was streamlined further, and provides a new security level based on certificate fingerprints instead of CA signatures. See TLS_README for details.
- Milter support was updated from the Sendmail 8.13 feature set and now includes most of the features that were introduced with Sendmail 8.14. See MILTER_README for details.
- Stress-adaptive configuration was introduced. This allows the Postfix SMTP server to temporarily adjust its rules under conditions of overload, such as a malware attack or backscatter flood. See STRESS_README for details.
- The queue manager scheduler was refined. It now provides per-transport scheduling controls and allows for adjustment of the sensitivity to mail delivery (non-)errors. See SCHEDULER_README.
- Security was improved by introducing a Postfix-owned data_directory for storage of randomness, caches and other non-queue data. This change avoids future security loopholes due to untrusted data sitting in root-owned files or in root-owned directories. Writes to legacy files in root-owned directories are automatically redirected to files in the new data_directory.
- No functionality has been removed, but it is a good idea to review the RELEASE_NOTES file for the usual minor incompatibilities or limitations.
Updated versions of Postfix version 2.4 (and perhaps 2.3) will be released with the same fixes that were already included with versions 2.5 and 2.6.
Wietse
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