When feedtree downloads feed items, it add something like this to the entry:
<div style="background-color: #eee; padding: 6px; margin-top: 12px; color: #666; font-size: small; font-family: sans-serif; clear: both;"><table border=0 cellpadding=0 cellspacing=6 style="width: 100%;"><tr><td valign=middle width=24><img src="http://localproxy.feedtree.net/:internal:/icons/download-24.png"></td><td valign=middle align=left>This entry was retrieved directly from the feed via HTTP. It is assumed to be authentic.</td><td valign=middle align=right><a href="http://localproxy/help/download.html">Help</a></td></tr></table></div>
I need to see what else it does, but whatever it is, it broke my aggregator. Now I see raw source instead of pretty rendered HTML. I'm using a modified version of rss2email (http://www.ixid.net/rss2maildir).
If at all possible, I'd prefer feedtree to pass along the feed without modification.