Board base URL is the URL which will be used as the URL base for unsubscription links in notification e-mails. It can be set in two ways:
|•||In Site Manager -> Settings -> Message boards -> Board base URL; from here, it can be inherited by the web parts.|
|•||Directly in Message board web part properties.|
The following rules should be followed when creating user and group message boards placed on these pages in order for the unsubscription links to work correctly:
1. When you create a user message board, which is a message board placed on a user's profile, it is recommended to set the Board base URL directly in web part properties, for example like this:
You can find a live example of this setting on the Community Site sample website.
2. When you create a group message board, which is a board placed on a group's profile, it is recommended to set the Board base URL directly in web part properties, for example like this:
3. When you create a public message board, which is a board placed on any document without a wildcard URL, the Board base URL property needn't be set.