If you look at the confirmation email is actually sent at 1:00 AM? Just trying to rule out mail routing issue. Try point you location doc to that server and send an email and see if it goes out right away.
If it is a mail routing issue I would check
Is the server in the same named network?
Are the mail routing connection docs that are prohibited a time schedule?
If it is not a mail routing issue (i think it is) make sure the task RnRMgr is in the servers notes.ini and not being stated and stopped by a program doc.
Here is a url to a presentation on trouble shoot issues http://www-01.ibm.com/support/docview.wss?uid=swg27024150&aid=1