• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.
  • We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.

Plesk 10.3.1 How to Update Horde 3 -> 4

It should be possible if you install horde and configurate it yourself. (Configuration with Qmail will be the worst thing i think)
After that u should ve a Webmailer Gui, which u can connect with a DNS Record to that Subdomain.

This is the theory ;)
 
I think that Plesk will not found your custom unsupported Horde installation and as result Horde will not be integrated to Plesk interface.


How can i install the new horde 4 version?

pear install -a horde/webmail

But got later these error: PHP Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 32 bytes) in /usr/share/php/PEAR/PackageFile/Parser/v2.php on line 65

i updatet my php.ini to 512M but no changing effect
 
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