You're right about debugging DXL, but what I do is export the DXL I'm trying to import it to a file, then examine this with an XML validator (I use "XML Copy Editor" - opensource) and I make sure the domino dtd is in subdirectory "xmlschemas" in the export directory. Then I can check if it's well formed and valid; the editor gives me the right spot where things are messed up in combinination with the same kind of error from the error log.
And I noticed too that the email notification doesn't function :-( - it's a bummer if you want to follow up what you posted here...
Martin Vereecken
http://www.bizzybee.be