Hi.  My apologies.  I was providing an example, but not the complete actual email address.  A specific, real address for which I have repeatedly received delivery notification failures is parkercarman@optimum.net.  It is in the list.  It has been repeatedly attempted as oarkercarman@optimium.net.  I don't think the emails are spam.  They are originating from "Mailer-Daemon@eigbox.net", but am not 100% sure.  I've included a screenshot of the message body below (I ultimately rec'd a failure, as well).  But, again, the primary question is whether the platform is messing up the addresses (there are multiple) or is it something else I'm seeing.  Thank you!       ... View more