Sometimes you see spam in your inbox and you don't know how to make your e-mail client categorize it as spam.

For G-mail (Google), go to your inbox and click the box next to the spam and on the top toolbar, click "report spam".
For MSN or Hot mail, go to your inbox and click the box next to the spam and on the top toolbar, click "junk".
For Yahoo, go to your inbox and click the box next to the spam and on the top toolbar, click "spam".
For AOL Instant Messenger (AIM) mail, go to your inbox and click the box next to the spam and on the top toolbar, click "report spam".
* Try not to put your e-mail address in websites that have stuff like "Free PS2" because doing that will add you to their "spam list" and you will get spam from them and from other companies that they sell your information to.
* You can also register at SpamCop and paste your Spam's headings into the box they give you. You might want to use a program such as Mail washer to look at your email's full heading so any code used to verify your email will not work.

Scam is in progress.
Check the credibility of the person or company by entering the company as well as keywords such as "complaint" or "scam" into a search engine such as www.google.ca. This will ensure that any past troubles with the company can be found out about.
Try and find references from people who have already been customers to the company
Check these websites for past scams and more info about the company: www.bbb.org (Better Business Bureau), www.scambusters.com, or www.fraud.org
Find out how long the company has been in business. Did it just suddenly pop up and will it suddenly disappear?
Pay by check so you can stop payments in the event of a scam
Be very cautious about a company that asks for money up front.
When submitting payment, do it by "signature required". this ensure that you must receive a street address rather than a P.O. box. Companies will not be able to disappear easy if you have an address.

* check all sources before making the decision