Knowledgebase: Postini Spam Filtering
Non-Account Bouncing
Posted by on 10 June 2014 01:54 PM

Non-Account Bouncing will assist in blocking directory harvest attacks, which will in turn preserve valuable network and server resources.


Non-Account Bouncing is an organization setting.  It is set in your user organization within Postini. If enabled, Non-Account Bouncing rejects mail to any address not registered in Postini

It is important to add every address, alias and mailing list before you enable Non-Account Bouncing. Users not added will never receive outside mail.

Here is how to set up non account bouncing.

  1. Login to Postini admin console, and click on the orgs and users.
  2. Locate the org you want to turn on non account bouncing. This should Be your user org.
  3. Scroll down and click General Settings.
  4. Scroll down and click Non Account bouncing and change the drop down box to on, and click Save or submit at the bottom.
  5. After you saved non account bouncing, you will be routed back to the previous page, and you will notice that non account bouncing is turned on.

Note: Make sure you don’t add non account bouncing to the mail server Org. If you do, this setting will not work.

ERROR: This domain name does not match domain registered in the license key file (, allowed domains:,localhost, please change the product path to match the domain under Admin CP > Settings > General Settings
This product will not work properly unless untill that value is changed.

For more information please contact Kayako support at