• 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.

let's enrypt

  1. Aethem

    Resolved Let's Encrypt can't verify the domain

    Dear Supporter, I recently switched from one Plesk instance to another provider instance, but I am facing an issue while adding Let's Encrypt certificates automatically to domains. I have attached the error message for your reference. Let's Encrypt requests to verify the domain with a custom...
  2. Bitpalast

    Resolved Failed to install or upgrade the extenion 'Let's Encrypt' (package: letsencrypt)

    Plesk Onyx 17.0.17 #22, CentOS 7.3, 64 Bit From the upgrade log: ERROR: Failed to install or upgrade the extension 'Let's Encrypt' (package: letsencrypt): Unable to open source file. Not zip file. No more details given in log. Full log message attached. How to fix this?
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