I too have had so-called Daemon-Miller messages listing non or undelivered emails I have not sent.  I have virus and malware scanned my system and checked all settings on Outlook and they are all normal. I have found on the TPG mail server side a list of contacts that reflect those on the "returned" unde;ivered addresses.  These contacts are NOT my Outlook contacts. I have in the lst 5 days deleted these contacts, to find 5 or 6 new different contacts listed on the server side. These have been deleted daily.    It appears to me that these spoof emails are originating from the server side of my email account and certainly NOT from my computer's email system.   It is certainly a regular pain, and also makes me wonder how many other subscribers are being spoofed like this? ... View more