• 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.

smtp error 535

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    Question Plesk SMTP authentication Error through Python script

    I have one VPS with a Plesk server configuration. On the same VPS Plesk-Mail server is running. I am able to send mail through webmail. But whenever using a script and using the below values to send mail through SMTP, it gives an authentication error. How to solve this problem? Note: Same...
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    Resolved Obsidian plesk centos 7 - roundcube error 535 smtp

    Hello, I'm on centos7 and plesk with Obsidian, I have a SYS server at OVH and a webpro license. I configured the settings of my plesk but I have a problem when I want to send a message with roundcube I have this error -> I have this message SMTP error (535): failure during authentication...
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