CSC 379:Week 1, Group 5
Techniques Against Spam
Block Domains
Background A Technique to black spam that creates a blacklist of known spammers that can be used by email providers by the user. This will cause suspect spam to be sent to a spam folder or the automatic rejection of emails from blocked domains
Positive
It will effectively block spam from known spamming addresses.
Negative
Legitimate domains could be blocked as a result of a computer being hijacked
Require users to request permission to send your email
Background A Technique to black spam that requires senders to request permision to send you an email. Senders not on your approved list , or white list email will be rejected or sent to a differnt folder. One example of this is the Earthlink Spam Blocker
Positive
The user should never receive spam.
Negative
Could have emails that a user might want to see that is not spam, but also not on your approved list.
Charge for e-mail sent
Background If there is a cost per email sent spammers sending out millions of spam then would not be able spam at such a high rate http://www.cnn.com/2004/TECH/internet/03/05/spam.charge.ap/
Positive
Spam would be cut down due to the cost
Negative
users will have to pay a cost per email sent as well
Opt in / opt out
Opt-in is a type of permission-based mailing where recepients must first give consent before becoming part of a mass mailing list. This guarantees that the sender of the advertisement, newsletter, or other mass mailing is targeting only those who want the mail.
Opt-out is a less stringent form of acquiring permission because recipients are not asked for consent before receiving the mailing, but are permitted to opt out of further mailings by indicating they wish to receive no further messages from the sender. The process of opting out usually takes the form of a web link embedded in an email or a specially formatted reply to the sender.
The European Union Privacy and Electronics Communcation Directive mandates that entities wishing to contact existing customers through email or text/SMS must provide an opt-out option in their message.
Domain authentication
http://www.dmnews.com/cms/dm-news/internet-marketing/32319.html
Bounties
Rewards for information that leads to arrest of spammers. http://www.msnbc.msn.com/id/5326107/%20