Adding an email address to your domain for free in Namecheap can be a bit confusing.
You don’t need their “Private Email” service (which costs extra).
You just need to set up a simple Email Forwarder (which they call “Redirect Email”)
Here’s how you do it:
Go to your domain settings, and look for “Redirect Email” section:
Then, click on “Add Forwarder”
Finally, type in an address that you’d like to forward to your domain, such as “email@example.com” and choose an address to forward it to (firstname.lastname@example.org, for example):