How come I keep getting "undeliverable" mail messages to my yahoo mailbox, when I did not even send a message.

Question

I sometimes have 15 or 20 "undeliverable" notices in my inbox in the morning to addresses I do not even know.

Answer 1

It sounds like somebody's hijacked your computer. Do you log off when you're not using it?  Whatever the case, I'd run scan your computer and I bet you've got all kinds of "critters" in there.

Somebody is using your computer to send out a bunch of spam.

Answer 2

go change your pass word. it's a spambot

Answer 3

Some one may have hijacked your account. go to tech support to see if they can help.

Answer 4

sometimes an undeliverable message is just spam. they try to get you to open the attachment that can contain a virus or ads.

it may also be that your account may be hijacked or someone is using a reply-to with your email address and trying to send to addresses that dont exist