Feb 17 2022 04:16 AM
Dears,
We received emails from similar names of our Employee.
It is critical that I am getting reply from unknown source on same email which was communicated internally.
How we can solve this kind of attack.
Regards,
Feb 17 2022 09:18 PM - edited Feb 17 2022 09:18 PM
Do you use eop or a similar mail filter solution? Consider also transport rules marking external mail with a subject tag i.e. "[EXTERNAL] my subject"
Feb 18 2022 12:06 AM
Feb 18 2022 06:43 AM
Feb 21 2022 05:09 AM
Feb 22 2022 09:12 PM
DKIM can help with certain aspects of this. If needed, I have included a couple links below for more information.
Kind regards,
David