Article ID: 112355, created on Sep 22, 2011, last review on May 10, 2014

  • Applies to:
  • Plesk 10.3 for Linux/Unix
  • Plesk 10.3 for Windows


While adding IP address at Home > Server and Panel Settings > Server-wide mail settings, the system displays the following error:

"Error: IP address/net mask pair is invalid." This error is displayed as in the following screenshot:


Extract file Address.php from the attached archive and replace the following file:
Linux -- ${PRODUCT_ROOT_D}/admin/plib/Ip/Address.php
Windows -- %plesk_dir%\admin\plib\Ip\Address.php


dd0611b6086474193d9bf78e2b293040 a914db3fdc7a53ddcfd1b2db8f5a1b9c 29d1e90fd304f01e6420fbe60f66f838 85a92ca67f2200d36506862eaa6ed6b8 c796c01d6951fa24ed54c7f1111667c6 f2d85fccc955a226f0b30e58456170cb f4ce8084cb23619ef5fe9428ecc388ea 56797cefb1efc9130f7c48a7d1db0f0c

Email subscription for changes to this article
Save as PDF