Address you can steal or buy

Email is not only convenient and quick way of messaging, but also a very efficient means of authentication in the Internet. Almost all sites that require registration, users have to provide your e-mail address. These can be sites with free ads, jobs, discussion groups or online games – everywhere you want the e-mail address. Thus, the owners of the website there is a database of unique addresses that can be hacked by using the program or if the owner of the website in bad faith to buy his.
In the sales database of email addresses and periodically accuse the owners of large mail servers, however, no evidence of such transactions was not found.

Buying a relevant database of email addresses is not the only way to find recipients for advertising. Some spammers use different software generators. Of course, not all', thus obtained, coincide with the real, but the first mass mailing will weed out non-existent email boxes that will allow to create a database of current addresses, which also can be sold. Similar delivery to cell phones.
The popularity of social networking has improved the lives of spammers, as many users publish their e-mail addresses on pages in the public domain.

Search the web

Finally, the third option, which is used by many compilers databases for direct-mail advertising – use search engines and algorithms. The fact that all email addresses have something in common, namely, the symbol @, which in Russia is called a dog. And search engines are able not only to regular search query, but for the advanced, using specific syntax. You can search only in page titles or in the main part of them, to search for parts of words or even one character.

It is based on this algorithm: in a search line you can write a query to search the @ character surrounded by any other characters. After this it remains only to determine on the found pages actually'. Of course, this is done manually and with the help of simple programs. To keep your email address from being detected by search engines, many people deliberately replace the @ symbol with the word "dog" or its derivatives. A living person, such a replacement does not hurt, but the search robot will not include e-mail address in a search result.