---
title: Setting Board base URL
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

The board base URL is a URL which is used as the URL base for unsubscription links in notification e-mails. You can set it in two ways:

- In **Settings -> Community -> Message boards -> Board base URL**. From here, it can be inherited by web parts.
- Directly in the Message board web part properties.

In order for the unsubscription links to work correctly, we recommend that you follow these rules when creating user message boards and group message boards:

1. When creating a **user message board**, which is a message board placed on a user profile, set the **Board base URL** directly in the web part properties, for example like this:

   ```csharp

   ~/Members/Profile.aspx 

   ```

   You can find a live example on the sample Community Site.

2. When creating a **group message board**, which is a message board placed on a group profile, set the **Board base URL** directly in the web part properties, for example like this:

   ```csharp

   ~/Groups/Profile.aspx

   ```

3. When creating a **public message board**, which is a message board placed on any page without a wildcard URL, the **Board base URL** property **needn't be specified**.