Showing Name instead of email addresses for anonymous?

Hi,
I have listhandler working fine on my website.
I have only a request if this is possible: I give the capability for anonymous users to make comments in the forum.
But, when an anonymous user makes a comment, and this comment is sent to the mailing list, the "from field" is displayed with the email address that I put in the anonymous field of the listhandler's configuration section.
I'd like instead that the Name of the anonymous will be showed, for example, John Cooper, instead of anonymous@mysite.com.
Do you think it is possible?
thanks in advance anyway.