Spamming

Spam can be defined as Electronic junk mail or junk newsgroup postings. Some people define spam even more generally as any unsolicited e-mail. Real spam is generally e-mail advertising for some product sent to a mailing list.In addition to wasting people's time with unwanted e-mail, spam also eats up a lot of network bandwidth. Consequently, there are many organizations, as well as individuals, who have taken it upon themselves to fight spam with a variety of techniques. But because the Internet is public, there is really little that can be done to prevent spam, just as it is impossible to prevent junk mail. However, some online services have instituted policies to prevent spammers from spamming their subscribers.

Now how a spammer can able to get Your email id. This can be done by following ways...

1)Social networking sites.
Many people on social networking sites leave thier privacy settings to very low.Its very easy to get E-mail id or other contact information on this kind of sites. Many spammers try to concentrate on this kind of sites for generating a spam list.

2)Online Applications 
Facebook also have a large number of application support but have you ever noticed that when we add any application to our profile it asks for permission to add our personal data to their database. These application adds data like email id,contact number of user to their database and this data list can be used by a spammer for spamming purpose.

3)Web-mail Extractors e.t.c
 Web-mail miner is free application to extract Email addresses from websites ,search engines,newsgroups.the working of this software is very easy. It searches for a user defined string pattern on a domain name.i.e emailaddress@domainname.com

There are lots of tools available in market for spamming purpose.
some of them are 123 hidden sender, direct sender, mail bomber, send blaster, e.t.c.