Article ID: 117359, created on Sep 19, 2013, last review on Sep 15, 2016

  • Applies to:
  • Web Presence Builder 11.5
  • Plesk 11.5 for Linux


Cannot send email through Contact Form when "Enable the protection from automated spam postings" is enabled (with Captcha). The following error popups:

Your message could not be sent due to an internal error. Please contact the website administrator by other means to notify about this issue

The message is sent successfully when Captcha is disabled.


Internal issue with ID PPB-2217. It has been fixed in Web Presence Builder 12.


  1. Find correct IP address of

    # nslookup
  2. Add IP address of in /etc/hosts:


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Contact Form


Your message could not be sent due to an internal error

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