Those are the Spam mails and the message which shows
undeliverable to the people you don't know are actually
one kind of virus mail.
Read Below to understand more on spam mails.
Q. What are the dangers of responding to spammed e-mail
messages?
A. Any response only confirms the accuracy of your e-mail
address, and may result in even more messages filling up
your e-mail Inbox. Users are advised to delete Spam
messages without replying to it.
Q. Should you click on the "unsubscribe" or "remove"
links to get off mailing lists?
A. Do so only for messages from companies or
organizations that you recognize and trust.
One of the spammers' nasty tricks is to get you
to "unsubscribe" so they can validate your e-mail
address. If you respond, they've connected; you are a
real person. They can add your e-mail address to a list
that they will use or sell. On the other hand, a company
you know and trust may inadvertently spam you due to
inept e-mail management. By responding, you've done them
a service. So, to reiterate, if you don't recognize the
mailer, you probably shouldn't "unsubscribe."
Q. Disclosing e-mail address to websites, Internet
Bulletin Boards and Newsgroups?
A. Some spammers get address lists from websites where
you may have signup up for free offers, ordered something
online, or entered a contest. They can also get your
address from Internet white pages listings, newsgroups,
resume postings, and chat rooms.
· Set up an e-mail address dedicated solely to Web
transactions, and for bulletin boards and newsgroups. You
will get spammed there more.
· Only share your primary e-mail address with
people you know. Avoid listing your e-mail address in
large Internet directories. Don't even post it on your
own website.
· Disguise (or "munge") your e-mail address. Use a
munged address whenever you post it to a newsgroup, chat
room, or bulletin board. For example, you would give your
e-mail address as
[email protected]0m using '0' (zero)
instead of 'o'. A person can interpret your address, but
the automated programs that spammers use cannot.
· Watch out for checked boxes. When you buy things
online, companies sometimes add a checkbox (pre-checked!)
to indicate that it's fine to sell or give your e-mail
address to responsible parties. Click the check box to
CLEAR it.
Hope this helps.
