• The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

Error message: Client sent malformed Host header

  • Thread starter Helmut Kaufmann
  • Start date
H

Helmut Kaufmann

Guest
Hello,

I have moved to a new web hoster and have a "small" problem. I get the following error messages from time to time when executing .php programs:

Bad Request
Your browser sent a request that this server could not understand.
Client sent malformed Host header


I get this message when I use the Plesk-provided email programs Atmail as well as Horde. I get it when I log into Atmail or Horde and try to edit the settings, like changing the display name of the user or change the way Horde should display mails (the last one that came in instead of the first one unread).

I am aware that this is quite a generic problem. I just wonder if anyone had the same symptoms and knows how to solve it.

Thanks a lot for your help,
HK
 
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