Comment Email notification (<a href...), why?

[Litograph]

I already asked this yesterday.

When i get an email after someone left a comment on my site the url of the person is not the only thing shown. Also "<a href="

for example:
*****************
The Comment is
----------------------------------------------------------------------
comments online
by <a href='http://www.test.de' >Test</a> - Test@test.de
----------------------------------------------------------------------
Email Sent by pixelpost
**********************

In the past the email always looks like this:
*****************
The Comment is
----------------------------------------------------------------------
comments online
by Test - Test@test.de
----------------------------------------------------------------------
Email Sent by pixelpost
**********************

What has changed?
Thanks for your help!!

Manuel
p.s: i'm german, so its not easy for me to write grammatical correct.

[Litograph]

got it ;-)
...
found it in the admin section: Options > Email notification > HTML-format: yes!!!