There are two different e-mail templates that can be used when sending notifications to subscribers and board moderators:
Subscribers - e-mails are based on the Boards - Notification to board subscribers template
Moderators - e-mails are based on the Boards - Notification to board moderators template
The following macros can be used in the notification e-mails:
Data macros
Board.XXX - where XXX are columns of the Board_Board table
Message.XXX - where XXX are columns of the Board_Message table
MessageUser.XXX - where XXX are columns of the CMS_User table
MessageUserSettings.XXX - where XXX are columns of the CMS_UserSettings table
Example: {%Message.MessageEmail%}
Source macros
DocumentLink - link to the document where the board is placed
UnsubscriptionLink - unsubscription link
Example:: {%DocumentLink %}
Page url: http://devnet.kentico.com/docs/devguide/index.html?message_boards_e_mail_templates.htm