How do I customize the Challenge Response message?

Customisation of the Challenge Response message is done as follows.

Go to Anti-Spam -> Challenge Response tab. The Customization section is shown below.

Challenge Respone Customisation

The URL, in most cases, should be left as the default. It should only be changed if

  • you are running your Web/Control Service on a port other than 32000, in which change it to the port
  • you are running a multidomain configuration with a virtual host for each domain. This is discussed at the end of this section.

The Challenge email sender option sets the SMTP Sender address. Again it is recommended that this be left as the default, blank. Use of this parameter can cause a loop between your servers whereby each server keeps auto-responding to the other.

To customise the message itself click the Message button and the message template dialog is displayed -

Callenge Responce Msg Template

Complete the From and Subject field as you would like the recipient to see in his email client.

Edit the message body to meet your needs.

Variables can be used as shown above (enclosed in '%%') and the %s variable can, and should, be used to display the URL the recipient must visit. This is evaluated to the URL set in the customisation dialog.

Multidomain configurations

If you are hosting multiple domains you may want to customise the Challenge Response URL with the %%Recipient_Domain%% variable -

Let's assume you have two domains -

  • domainA using host webmail.domainA.com
  • domainB using host webmail.domainB.com

Enter http://webmail.%%Recipient_Domain%%/challenge/ as the URL and this will be evaluated to

  • http://webmail.domainA.com/challenge/

or

  • http://webmail.domainB.com/challenge/

accordingly