About a week ago, I discovered hundreds of "mail delivery failure" messages in my inbox. Investigation revealed that they were all for SPAM e-mails that I did not send. I am guessing that this means one of two things:
(1) Someone discovered my password somehow, logged into my ISP account as me, and sent out a bunch of SPAM. Or (2) Someone sent out a bunch of SPAM, spoofing my e-mail address as the sender, and the delivery failures came to me. How can I tell which is the case, and if it's (2), is there anything I can do to defend myself against this sort of thing in the future? (I do know enough not to respond in any way to the almost-daily phishing attacks that try to get me to supply my userid and password. I have never responded to any of them.) I am running Debian stretch; but of course I realize that this question is not, strictly speaking, a Debian question; so I have marked it off-topic. But I suspect that it is of interest to users of this list, since this list is accessed via e-mail. -- .''`. Stephen Powell <zlinux...@wowway.com> : :' : `. `'` `-
