Email Threat

Question

HI..

There are some email threat like :

SPAM : email is unsolicited and unwanted junk email sent out in bulk to an indiscriminate recipient list

Phishing : type of social engineering attack where they are trying to get personal information from you

Also we sometimes get email from fake sender where we see the sender is some of our domain but if we see on the email header the sender is from outside. This threat can is categorized as spam or phishing? Or there is another 'name' for such case?

Answer 1

Hi Handian,

This is called "spoofing". To stop outside people from spoofing your domain, you will want to investigate setting up a DKIM for your domain:

Use DKIM to validate outbound email sent from your custom domain

https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/email-authentication-dkim-configure?view=o365-worldwide

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If this is helpful please accept answer.