Your company subscribes to the Office 365 Enterprise El plan. You are the Microsoft
Exchange Online administrator.
In the last week, employees have reported that they are receiving non-delivery report
messages from other companies. The employees have not sent messages to recipients
within those companies.
You need to prevent non-delivery report messages from reaching employees.
Which content filter option should you turn on in the Exchange admin center?
A.
NDR backscatter
B.
Conditional Sender ID filtering: hard fail
C.
SPF record: hard fail
D.
Block all bulk email messages
A ndr backscatter see http://blogs.technet.com/b/exchange/archive/2014/08/18/spam-email-and-office-365-environment-connection-and-content-filtering-in-eop.aspx
i agree A
It is normal that we turn on NDR filter, but looks like that question is a bit tricky, because it is written that employees did not sent messages to those recipients and it is mention that many employees are receiving those messages, so in that case could bulk as well because you would get NDR if your email would not be delivered.
Totally agreed Ali.
Muhammad Ali speaks the truth and has a hell of a right hook.
Everything is very oppen with a resally clear clarification of the challenges.
It was really informative. Your site is very useful.
Thank you for sharing!
CP is right. Here is the text from the URL
NDR backscatter is when spammer forges the user’s email address and sends email on their behalf to other recipients. If the “destination mail system” recognizes the mail as a spam or if the mail is sent to non-existing users, the “destination mail system” creates an NDR message that is sent to the organization recipient (the user whose email address was used by the spammer).
A is the answer:
Non-delivery report (NDR) messages that have been generated as a result of spam messages are often referred to as “backscatter.”
See reference:
https://www.sophos.com/en-us/support/knowledgebase/37088.aspx
Correct answer is A.
Answer is A.
http://blogs.technet.com/b/exchange/archive/2014/08/18/spam-email-and-office-365-environment-connection-and-content-filtering-in-eop.aspx
Answer is A.
Bulk email, also referred to as gray mail, is a type of email message that’s more difficult to classify. Whereas junk email is a constant threat, bulk email is typically comprised of an advertisement or marketing message that’s not likely to get sent repeatedly. Bulk email is wanted by some users, and in fact they may have deliberately signed up to receive these messages, while other users may consider these types of messages to be spam.
A would work best
NDR Backscatter
https://blogs.technet.microsoft.com/eopinsights/2015/06/04/office-365-ndr-backscatter-protection-aka-boomerang/