Quick Email Hacked Question

Malwarebytes reported no threat, but I still ran your entire suite of tools, correctly, I hope. Nothing exciting found. Before I run again and start posting Logs, please look at the attached clip and see what it means to you.

I have an email account on Bright House and use (the old) Eudora as an email handler. Some time back a trojan broke thru Zone Alarm Pro. I ended up reformatting my SSHD to remove problems a professional shop could not. But I kept seeing emails come in addressed from real names on my email contact lists, but with strange 4-digit names like John2354@Yahoo.com.

Then my email forwarder started rejecting messages supposedly sent from my clean machine. Sample attached, as image. Only the bottom line missing.

What does it look like to you?
Thanks!

 

Sorry for tacking unto a thread I have not followed, but not obvious how I ask a new question.

I use the old 7.1.0.9 Eudora with much joy. However, occasionally strange things happen . Now it is :MAILER-DAEMON@mail.gmx.com" , hundreds of bounced emails saying "A message that you sent could not be delivered to one or more of
its recipients. This is a permanent error. The following address
failed:"

it is my regular RR email address, no problem. But the message says I sent the email, and even tho the addressor might be one I have received before, I did not recently send them anything. For example:

"Received: from mta2.mail.advantagebusinessmedia.com ([68.232.193.94]) by
mx-ha.gmx.net (mxgmxus003) with ESMTP (Nemesis) id 0MY7AE-1VCSla1L8q-00UpxF
for <jhebbard@techxxxxxt.com>; Mon, 21 Oct 2013 21:31:34 +0200"

My redaction is because of fear of spam. Note the "for" address is my mail.com forwarding account. I suspicion RR may be rejecting because of spam, but this is peculiar. And mail.com is showing nothing in spam. Is there someone trustworthy (a major geek) that I can send a text copy of the bounce message for a few minutes debugging?
I am at sea with this one.

Thanks! =>Jim<= Enginer