Create multiple users with the same mail address for testing or other purposes

Problem statement

I need to create multiple users with the same email address for testing. How to do it?

Solution

One of the simplest ways to create multiple users with one valid and real email address is to add aliases. Any email username (the part before the @) can be complemented with an alias, which is symbolized by the plus sign (+), so let’s say that guy@company.com can have multiple aliases like:

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