Is there a way to validate email address?
The domain of the company is abcd.com, with an employee called John Doe, email address email@example.com.
An email is sent from "John Doe", firstname.lastname@example.org
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?