Here is the answer to a FAQ about Horde WebMail:

How do I create/change a signature in Horde WebMail
Just follow the steps given below:

In the icon bar at the top of any mail page in the Horde WebMail, click on the Options icon.

In the Your Information column, click Personal Information.

On the Personal Information page, click Edit your identities.

Select Default identity from the Your identities pop-up menu, type your signature text, and click the Create button.

Confirmation that the change you have made to your default identity — adding a signature file — has been made will appear at the top of your window.

We provide a program which makes it very easy to install third party scripts to your hosting account. If you want your website to have a WordPress blog, you can use Fantastico to install WordPress to the root of your site or to a subdirectory.

Login to your Client Area and choose cPanel.

Navigate to the Software / Services section inside cPanel.

Click the Fantastico icon.

This will display the page where the third party scripts can be installed.

Click on WordPress.

You can enter a subfolder such as ‘blog’ or leave it blank if you want the site’s main page to be the blog.

Enter a username and password

Enter a nickname for Admin, your email address, the name of your Blog and a short slogan.

Click Install WordPress and Fantastico does the rest.