With PDF type of spam, a junk email is sent out with a PDF file attachment, which most anti-spam filters cannot or do not read. These attachments range from rudimentary to professional-looking documents. The text in the body of the email is usually nonsensical gobbledygook that the spam-filter does not recognize as junk mail.
The use of junk mail with PDF attachments takes up even more Internet bandwidth. This is because PDF files are generally much larger than the embedded pictures and graphics used in image spam. Image spam is typically in GIF format; PDF files are upto 3 times the size of these files.
Protecting Your Kids
Spam is commercial email that is sent out in bulk to millions of people without their consent. It is may contain advertising messages for regular products and services but increasingly, it is email of an inappropriate, offensive or malicious nature.
Whitelists - Set up an email account for your child that "whitelists" only specific email addresses. A whitelist is just a list of trusted and approved email addresses. For example, you can have the addresses of your child's grandparents, aunts and uncles whitelisted. Whenever email is received from any of the whitelisted addresses, it goes directly to your child's inbox. All other email addresses are blocked.
JavaScript: The spammer can use Javascript that will ensure that the spam is only visible when the email is loaded. This type of spam can only be prevented using anti-spam software that decodes or blocks the java script.
Be sure to log into your child's email account on a regular basis to monitor the incoming and outgoing messages, and to ensure that the spam filter and spam block are working appropriately.
The use of junk mail with PDF attachments takes up even more Internet bandwidth. This is because PDF files are generally much larger than the embedded pictures and graphics used in image spam. Image spam is typically in GIF format; PDF files are upto 3 times the size of these files.
Protecting Your Kids
Spam is commercial email that is sent out in bulk to millions of people without their consent. It is may contain advertising messages for regular products and services but increasingly, it is email of an inappropriate, offensive or malicious nature.
Whitelists - Set up an email account for your child that "whitelists" only specific email addresses. A whitelist is just a list of trusted and approved email addresses. For example, you can have the addresses of your child's grandparents, aunts and uncles whitelisted. Whenever email is received from any of the whitelisted addresses, it goes directly to your child's inbox. All other email addresses are blocked.
JavaScript: The spammer can use Javascript that will ensure that the spam is only visible when the email is loaded. This type of spam can only be prevented using anti-spam software that decodes or blocks the java script.
Be sure to log into your child's email account on a regular basis to monitor the incoming and outgoing messages, and to ensure that the spam filter and spam block are working appropriately.
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