How to protect yourself from spam?

1. Do not make doubtful contacts at Internet. Some persons, having found out your address will subscribe it to various newstellers, and specify it during registration at various sites - being simply prank (or meanness).

2. Before pressing any button on some site (when making order at internet shop, or sending post card etc.) after entering your e-mail address, make sure, that by pressing the said button, you do not to express your agreement to receive information from that site. It is sometimes written in very small font at the very middle of user agreement or made in form of very small tick on the page distant corner.

3. Do not leave your address at internet sites (job sites, guest books, forums, acquaintances etc. - where your message with address everyone can see).

4. If you really need to do it - make separate e-mail address for such purpose and be ready to receive the loads of spam together with required information.

5. If your address had been displayed somewhere in any way, or it had been calculated via selection, and it turned out to be at spammers lists, it is necessary to fight spam trying to break into your mail box. Practically each mail server or mail program have the option of letters, coming to your mail box, preliminary filtration, and refuse the acceptance of such letters. 

Such filter can be: 
— refusal to receive letters, in case if TO and COPY fields do not contain your e-mail address; 
— refusal to receive letters, with letter body, not containing the code word, you invented and informed all your correspondents about it; 
— acceptance to get letters from the addresses you put to the White list only etc.

6. Install special software - spam killer to your PC.