I just installed GrowlMail, quit mail.app and then relaunched it. I do not see the icon indicated in the screen shot on the project page:
http://growl.info/documentation/growlmail.php
I am using Mail.app 2.1.1, on MacOS 10.4.10 and Growl 1.1.1
Growl Mail broken?
For anyone else landing on this thread the answer is here:
http://www.davidroessli.com/logs/2007/0 ... l_to_work/
http://www.davidroessli.com/logs/2007/0 ... l_to_work/