Comments to Admin – From email

I’ve posted another question about formatting comment notifications to the Admin as HTML, but thought it best to separate this other question out into its own thread. Hope that’s acceptable to the mods, and if not, feel free to merge these two! ??

Is there any way to have the comments that are emailed to the Admin show the “from” address as being the email address entered by the commenter (if they entered one) instead of the very generic hostname that currently shows? Is this an issue with my host (HostMonster), or is it changeable in WP? (I’m using WP 2.0.4)

Thanks!
steve ??