Huh? All the info I have on your issue says that it's from an incorrectly installed DM. Basically you get that message because DM was installed to redirect email messages, but since you don't have redirector configured you get that message.
Someone else just elxplained it a little differnt. They gave me links that explained it. I deleted my ser vice books and am reinstalling desktop manager. Will give that a go and see what happens.