To me it is spam and you should be careful.Look to see if it occurs more than once when you review your emails.

I get them every single day and the subject is Viagra.

I don't know how they do it and don't know how to block them without blocking my own address.

That's a new one on me, Lydia. I'd be afraid to open it too.

I get them fairly regularly, but since I know I didn't sent me an email, I just hit the delete button..

they spoof the address likely they got it from one of the many emails that get forwarded with everyones email on it where the person sending did not wipe out people's email addresses and then use the Blind carbon copy. That way the email addys in the body of the email end up back in the hands of the spammers so they have a whole list of new addys to use.
Never open those kind of emails, send them to your junk mail folder instead.

Yes I get it every now and then and I get the "V" subject too.

patti

Change your password. Mine is a combination of numbers, symbols and letters. I haven't had an email sent to me, from me since.

I've got a few ... that Yahoo usually consigns to the "Spam" box. I delete 'em. Don't think that opening them may be that risky ... but I've been told to never open attachments sent from strangers: 99 of 100 may be O.K. ... but the hundredth one may turn out to be the equivalent of a parcel bomb coming by email.

I get some where the person is the sender and also lists him/herself as the recipient.

I guess that it's not too bad to talk to yourself: it's when you start answering yourself back that things get a bit dicey. But ... when there's no one else in the house to whom I can talk, day after day ... I find myself doing that, on occasion.

Don't tell anyone, O.K.?

ole joyful

Yes, it's spam and it's called spoofing as mentioned. While it's not technically "dangerous" to open them, you could be asking for more spam by opening it. Often they'll put in a little code to tell if you've opened it and that verifies the email address. A verified email address is worth much more than an unverified one in the spamming world. Not unlike a known telephone number is worth more to a telemarketer.

When you get this stuff, delete it, or pay the price.

OJ, sometimes people will do the right thing and use BCC when they send mail to multiple people. They usually put their own address in the "To" field and "BCC" the others so addresses will be hidden. It's the right thing to do. Now that doesn't mean that it's *not* spam though! :)

People who send to everyone in their address book and not BCC, and also the people who just forward hoaxes and other junk should have their computers confiscated.