[OT] Has my e-mail account been hacked?

From	Stephen Powell <zlinuxman@wowway.com>
Newsgroups	linux.debian.user
Subject	[OT] Has my e-mail account been hacked?
Date	2015-10-12 16:50 +0200
Message-ID	<qiMAh-1Y3-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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    <zlinuxman@wowway.com>
 : :'  :
 `. `'`
   `-

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[OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-12 16:50 +0200
  Re: [OT] Has my e-mail account been hacked? Florian Pelgrim <florian.pelgrim@craneworks.de> - 2015-10-12 17:00 +0200
    Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-12 23:00 +0200
      Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-13 02:00 +0200
        Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-13 06:40 +0200
          Re: [OT] Has my e-mail account been hacked? Jochen Spieker <ml@well-adjusted.de> - 2015-10-13 10:20 +0200
            Re: [OT] Has my e-mail account been hacked? Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2015-10-13 17:30 +0200
              Re: [OT] Has my e-mail account been hacked? Brian <ad44@cityscape.co.uk> - 2015-10-13 20:10 +0200
              Re: [OT] Has my e-mail account been hacked? Jochen Spieker <ml@well-adjusted.de> - 2015-10-13 22:10 +0200
              Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-14 04:10 +0200
            Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-14 04:00 +0200
              Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-14 04:20 +0200
                Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-14 05:00 +0200
                Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-14 05:20 +0200
                Re: [OT] Has my e-mail account been hacked? Adrian O'Dell <crimsonmane@gmail.com> - 2015-10-14 05:20 +0200
                Re: [OT] Has my e-mail account been hacked? John Hasler <jhasler@newsguy.com> - 2015-10-14 05:30 +0200
                Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-14 05:40 +0200
                Re: [OT] Has my e-mail account been hacked? Timothy Hobbs <timothy@hobbs.cz> - 2015-10-14 10:40 +0200
                Re: [OT] Has my e-mail account been hacked? Carl Fink <carl@finknetwork.com> - 2015-10-14 15:10 +0200
                Re: [OT] Has my e-mail account been hacked? Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2015-10-14 05:30 +0200
              Re: [OT] Has my e-mail account been hacked? Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2015-10-14 04:30 +0200
                Re: [OT] Has my e-mail account been hacked? Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2015-10-14 05:30 +0200
        Re: [OT] Has my e-mail account been hacked? Jimmy Johnson <field.engineer@gmail.com> - 2015-10-13 08:40 +0200
          Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-13 09:10 +0200
            Re: [OT] Has my e-mail account been hacked? Jimmy Johnson <field.engineer@gmail.com> - 2015-10-13 11:00 +0200
              Re: [OT] Has my e-mail account been hacked? <tomas@tuxteam.de> - 2015-10-13 11:00 +0200
                Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-13 11:10 +0200
                Re: [OT] Has my e-mail account been hacked? Jimmy Johnson <field.engineer@gmail.com> - 2015-10-13 11:20 +0200
          Re: [OT] Has my e-mail account been hacked? Brian <ad44@cityscape.co.uk> - 2015-10-13 21:10 +0200
          Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-14 03:30 +0200
            Re: [OT] Has my e-mail account been hacked? Jimmy Johnson <field.engineer@gmail.com> - 2015-10-14 11:00 +0200
        Re: [OT] Has my e-mail account been hacked? Brian <ad44@cityscape.co.uk> - 2015-10-13 13:20 +0200
        Re: [OT] Has my e-mail account been hacked? stelios kteniadalis <keste82@gmail.com> - 2015-10-14 12:40 +0200
  Re: [OT] Has my e-mail account been hacked? Brian <ad44@cityscape.co.uk> - 2015-10-12 18:40 +0200
    Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-14 00:50 +0200
      Re: [OT] Has my e-mail account been hacked? Adrian O'Dell <crimsonmane@gmail.com> - 2015-10-14 01:00 +0200
      Re: [OT] Has my e-mail account been hacked? Brian <ad44@cityscape.co.uk> - 2015-10-14 01:00 +0200
        Re: [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-14 04:30 +0200
          Re: [OT] Has my e-mail account been hacked? Brian <ad44@cityscape.co.uk> - 2015-10-14 11:10 +0200
            [SOLVED] [OT] Has my e-mail account been hacked? Stephen Powell <zlinuxman@wowway.com> - 2015-10-16 01:00 +0200
      Re: [OT] Has my e-mail account been hacked? Stuart Longland <stuartl@longlandclan.id.au> - 2015-10-14 03:30 +0200
  Re: [OT] Has my e-mail account been hacked? Jochen Spieker <ml@well-adjusted.de> - 2015-10-12 22:50 +0200

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