Article ID: 119691, created on Jan 16, 2014, last review on May 11, 2014

  • Applies to:
  • Plesk Automation


Messages sent from webmail contain the following header:

*Received: from unknown (HELO (*


The issue is considered to be a software issue, it is fixed in PPA 11.5


If you do not want this header in emails from your server, please change smtphost parameter in the /usr/share/psa-horde/imp/config/servers.php on webmail node (Management node by default).

smtphost parameter should be changed on 251 and 268 lines, from:

'smtphost' => '',


'smtphost' => $imapServer,

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