The logo_url variable is only available to the email template and not to the cms block.

What you could do is: Create a custom variable under System->Custom Variables called logo_url and then include: {{customVar code="logo_url"}} in your block.

The logo_url variable is only available to the email template and not to the cms block.

What you could do is: Create a custom variable under System->Custom Variables called logo_url and then include: {{customVar code="logo_url"}} in your block.

In addition you could set:

{{media url="email/logo/"}}{{config path="design/email/logo"}} 

if you have uploaded a logo.

Or

{{skin url="images/logo_email.gif"}} 

if you are using the skin directories.