Not receiving mail after sign Up

Install / Update Deployment
1

I have successfully logged on ErpNext via the localhost. However, after I signed up I did not receive the email to validate the account.

Why Please?

2

you may not setup email setting to send and receive emails
its not default set up when installed in localhost

3

@Keep_Moving_Sales
check bulk mail doctype in ERPNext.
Also check spam folder of your email.