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Q: email spoofing ( Answered,   1 Comment )
Question  
Subject: email spoofing
Category: Computers > Internet
Asked by: phaleon-ga
List Price: $2.00
Posted: 08 Aug 2004 17:41 PDT
Expires: 07 Sep 2004 17:41 PDT
Question ID: 385205
How does someone send me email with the wrong address? How do I get
emails with someone elses email address?

Clarification of Question by phaleon-ga on 08 Aug 2004 17:51 PDT
I get spam emails. They come to me with the wrong address. I have
noticed this on various email systems. How does a spammer send email
to me which is addressed to someone elses email? Most of the time they
have the same domain address. Like hotmail.com or centurytel.net..
etcetra...
Answer  
Subject: Re: email spoofing
Answered By: joey-ga on 08 Aug 2004 17:59 PDT
 
Hi there.

They are using the "BCC" feature commonly found in most email
programs.  It stands for "blind carbon copy" and will send a copy of
that message to all addresses in the BCC list (just like in the TO: or
CC: list), but will not show any of the BCC addresses.

So, you could send a message like:

----
Subject: test BCC email
To: mary@foo.C0M
CC: bob@bar.C0M, marty@gee.C0M
BCC: phaleon@question.C0M

Test of the BCC Message
----

Everyone listed would get the message (mary, bob, marty, and phaleon),
but no one wouldn't know phaleon received a copy, and phaleon wouldn't
see his address anywhere.  This is because the BCC field is removed
before it is sent.

For more information, check out this explanation:
http://www.techsoup.org/howto/articlepage.cfm?ArticleId=262&topicid=5


--Joey

Searching strategy: BCC email

Clarification of Answer by joey-ga on 08 Aug 2004 18:01 PDT
Pardon the grammar typo:

it should say ". . . but no one would know . . ."
Comments  
Subject: Re: email spoofing
From: bananarchy-ga on 09 Aug 2004 06:43 PDT
 
Depending on your mail server, it's also possible that emails being
sent to bogus addresses at your domain are getting mistakenly
forwarded to you.  (For instance, if you're bob123@company.com, and
spam is sent to bob@company.com, it's possible that the mail server is
guessing on the intended address and redirecting those to you.)  I'd
say that's pretty unlikely, but it happened to me a few years back....
I, of course, was foolish enough to respond asking to be unsubscribed,
which is why my inbox is so full every day.

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