Adding new mailboxes to an existing Hostinger email account and managing those accounts
Hostinger is a cheap and reliable web hosting service provider. Here is the step-by-step guide on how to create business free email account with Hostinger.
With the aid of the Email Accounts area in your control panel, you can effortlessly manage your email accounts. Just click the domain for Emails. An email accounts page will appear:
First Login into your hostinger hpanel and make sure that you have already a working website domain that is active, running and connected with hostinger.
Control Panel (Hpanel) -> Emails → domain name.
You will see an Email Accounts page:

Depending on your hostinger plans, you are limited to have a specific number of free business email with your website extension. which are offered for free. Click on the blue arrow at your right to go to email account page to add new email.

How to create an email account?

Click on Create Email account + button
Type in the email address, this address is the desired name you which to have for your client contact. Take for an example (admin, info, hub). Then enter a secure password, and then select Create.

Congratulations, your email address is now active. You may want to know how to manage your email account. find it below.
How To Manage Your Newly Created Email Account

You may find general information about how to use your email account in the Email Accounts section.
Clicking on Webmail will take you to your new email login page which will further give you access to view your inbox.
Clicking on the three dotted points option will display a drop down menu option for you to select the desire actions you want to take.
If you click on ⋮, The following options will be displayed:

NOTE:
The deletion of an email account cannot be undone. When an email account is deleted, all of the emails that were previously stored there are also permanently removed. Hostinger offer both paid and free email account .
Lets us know in the comment section how you feel. feel free to ask question if you have any.