[malc]

We are getting swamped with "mail undeliverable. returned to sender messages".

As they are "replies" to messages that we have not sent, and from people we have never heard of. It suggests that our e mail address is being used by a third party to send spam, viruses etc.

How can a mail address be used to send mail without the "owners" knowledge?

Does it suggest malware of some kind on our system or ISP's server.?

I have run several virus scans but can find nothing suspicous on our system.

This has gone on for a couple of weeks, had hoped it would have stopped by now.
Can anything be done further.?

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it's possible that one of your internal machines is infected with spyware....or maybe your server (if you have your own mail server in house...though i'm assuming you're a home user not a business user)...i would doubt that it's your isp....it's possible that someone has just...well "aquired" your email address...and is sending messages as if they were from your address...but really just with your name...

[dsenette]

it's possible that one of your internal machines is infected with spyware....or maybe your server (if you have your own mail server in house...though i'm assuming you're a home user not a business user)...i would doubt that it's your isp....it's possible that someone has just...well "aquired" your email address...and is sending messages as if they were from your address...but really just with your name...