Identify emails


Is there a way to validate email address?

The domain of the company is, with an employee called John Doe, email address

An email is sent from "John Doe",

The person receiving the email does not realize the slight difference in email address and follows the instructions enclosed in the email which is not a good thing.

Is there a way to filter emails so only authentic emails get through and not similar ones?

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David Johnson, CD, MVPOwnerCommented:
Unfortunately without using a strict white-listing policy not  possible.. i.e. send to junk all except on a white-list.

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Neil RussellTechnical Development LeadCommented:
And if you implement such a system then you effectively stop everybody else on the planet from emailing you.  
You couldn't implement a rule that says Let every new email address through unless its very similar to one I already know about.
mbudmanAuthor Commented:
Would you know how to define a rule where emails names match email address?

For instance, do not accept emails from John doe if domain is not equal to
Neil RussellTechnical Development LeadCommented:
You would need a 3rd party product to do this and as you are using Office 365 I would have to defer to other experts who may know more on the subject but I dont think you can do so without.
mbudmanAuthor Commented:
Thank you for your assistance.
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