Email spam, also known as junk email or unsolicited bulk email (UBE), is a subset of spam that involves nearly identical messages sent to numerous recipients by email. Definitions of spam usually include the aspects that email is unsolicited and sent in bulk.
Email spam has steadily grown since the early 1990s. Botnets, networks of virus-infected computers, are used to send about 80% of spam. Since the cost of the spam is borne mostly by the recipient,
How to address this ISSUE - Preventive Measures:
There are several common ways that spammers can get your email address:
Help keep spam out of your inbox
You have powerful tools to help stem the tide of spam, from SmartScreen spam filters to common sense, to SenderID technology that helps verifies who an e-mail message is from.
1. Use e-mail software with built-in spam filtering Microsoft SmartScreen is an intelligent spam-filtering solution that is integrated across all Microsoft e-mail platforms, including:
SmartScreen technology determines how to distinguish between legitimate e-mail messages and spam by using extensive user input from hundreds of thousands of Windows Live Hotmail users.
The result is that more legitimate e-mails reach you and upwards of 95% spam is blocked.
2. Keep your filters current
Spam is a cat-and-mouse game with spammers working relentlessly to outwit the filters. Do your part by keeping your junk e-mail filter up to date.
Update your e-mail junk mail program and e-mail filters. Spammers continually try new tricks to bypass anti-spam technologies. The Outlook Junk E-Mail Filter is powered by Microsoft SmartScreen technology, which helps prevents spam from cluttering your inbox.
Updates are available from the Microsoft Update and can be downloaded automatically, providing you up-to-date protection against spam and phishing.
3. Be careful about sharing your e-mail or instant message address
4. Sender ID technology helps keep e-mail honest
According to a recent Microsoft study, spammers send an average of 3.8 billion messages to Hotmail addresses every day. Thanks to a technology called Sender ID, an average of 20 million of those spam messages are blocked from e-mail inbox's every day.
Sender ID authenticates inbound e-mail to help verify that it is from the person that it says it is from. Messages that have been authenticated by Sender ID are less likely to be spam and messages that fail Sender ID are more likely to be spam.
If you use the following e-mail programs, you're already experiencing increased protection from spam through Sender ID:
To help distinguish between verifiable and unverifiable senders, Sender ID checks and validates the sender's e-mail address against the sender's Internet Protocol (IP).
Sender ID at work. Only authenticated messages are allowed to reach the receiver.
An increasing number of technology organizations have announced Sender ID support by encouraging industry adoption, publishing their own sender records, or offering specific products and services that support the Sender ID system, from e-mail applications to anti-spam services. For more information on Sender ID, Visit: www.microsoft.com/senderid
5. Improve your computer's security
You can greatly reduce your risk from hackers, viruses, and worms if you use a firewall, keep your Windows and Microsoft Office software up to date, and install antivirus and antispyware software (and update it routinely).