If so, are they in actuality logging into my Yahoo report, infected my computer (I thought this be unlikely/impossible on the Mac iBook), or merely putting my address in as the sender so it isn't traced to them?
Answers:
The second (putting your address in as the sender). They're not in your Yahoo picture.
The spammers somehow get your physical e-mail address and composed a spam message fake your address contained by as the reply-to address for that e-mail.
Then the mail server on the other ruin (for reason of its own) contracted that the spam wasn't deliverable, and sent rear an automated reply motto so. Since your address be fake surrounded by as the reply-to, that designed that you get the "undeliverable" message on the subject of post that you didn't in actuality dispatch.
Contrary to popular belief, Mac computers own and do acquire virus, a short time ago not frequent since they're not that big of a target.
Most imagined your e-mail address be spidered past its sell-by date a website or someone else's infected computer and spambots arbitrarily use collected e-mail address when spamming.
Just delete it. It's certainly spammers using a different method of getting the messages sent to you to look more 'authentic', and accordingly more predictable that you will look at it and buy within product.
yes your picture is person used by spammers...it's not a virus...they are simply sending spam out next to your depiction...i've have my sketch stolen and my information changed, so examine your statement information and you will know when the article have be stolen...if the information hasn't be changed from what you put surrounded by, consequently it channel they are lone using your address to convey beside...
Possible - I get one of those the other daytime too for the first time.