You can easily access your email accounts in hPanel in two ways:
Open Emails → domain name

Open Hosting → Manage → Email accounts:

You will see the Email Accounts page for the mail service you’re using:
Hostinger Email
For Hostinger Email, you will see this page:

There you will be able to perform all the management functions for your emails, such as:
Creating or deleting email accounts
Get your email account configuration details
Resetting your webmail password
Creating catch-all, forwarders, and autoresponders
NOTES:
How to create email filters and email signatures using Webmail?
Titan Email
In case you are using Titan Mail, the Email accounts page will look like this:

There you will be able to perform all the management functions for your emails, such as:
Creating or deleting email accounts
Get your email account configuration details
Resetting your webmail password
Creating catch-all, internal forwarders, and autoresponders
NOTES:
How to create email filters and email signatures for Titan Email using Webmail?