Question

Think about junk mail in your email program's spam folder. What types of analytics methods does your email program's spam filter use to identify spam email? Provide examples.

Answer 1

From the time anyone sent an email to us till the time it reaches to our email system, our email program spam performs following filters to identify spam email:

• Out system program checks whether an email address looks very similar to the email address of a known sender. For example, the email address may replace the letter "O" with the number "0."
• Our email program reads the title, header of email to check whether the email is asking the user to share personal information, like passwords or credit card numbers.
• The filters look at specific parts of an email, such as the subject line, email content and even the header data. The header data is like an email’s GPS. It tracks where an email came from, where the email goes and when it arrives at various stops. The filters look at this data for anything out of the ordinary and demotes emails to the spam folder if anything is out of place.
• In addition, there are global lists of spammers called blacklists. If a filter spots an email sent by a spammer on the list, the email is banned from the inbox.