Encryption Settings The  Trigger encryption by e-mail subject  allows Internal Recipients to encrypt email to any External Recipient by entering a special keyword in the subject of any email. This setting enables or disables this feature. We recommend you set it to  Enabled  ( Figure 1 ). Figure 1 The  Encryption by e-mail subject keyword  sets the special keyword to be entered in the subject of an email in order to encrypt that email message. Enter a unique keyword that would not normally appear in the subject of a typical email. We recommend you set this field to  [encrypt]  or  [secure]  ensuring to include the brackets ( Figure 2 ). Figure 2 The  Remove e-mail subject keyword after encryption  field sets the system to automatically remove the special keyword from the subject after the email has been encrypted. We recommend you set it to  Enabled  ( Figure 3 ). Figure 3 The  Secure Portal Address  field sets the address that will be included in PDF encrypted emails that require the recipient to navigate in order to decrypt, view and reply to encrypted PDF emails ( Figure 4 ). Figure 4 The  PDF Reply Sender E-mail  sets the  From  address for when an external recipient replies to an encrypted PDF email from the  Secure Portal  ( Figure 5 ). Figure 5 The  Server Secret Keyword, Client Secret Keyword and Mail Secret Keyword are used to protect external resources against tampering. For example if an external user replies to an encrypted PDF email, the Server Secret Keyword  ensures that the user can only reply to to a message generated by this server. If you followed the  Getting Started guide, you should had generated new Server Secret Keyword, Client Secret Keyword and Mail Secret Keyword. If not, ensure you generate one by clicking on the icon next to each which will automatically generate a keyword and enter it in each respective field ( Figure 6 ). Figure 6 Click on the  Save Settings button to save your settings.