Yes! This is true ! You can have more mails in your inbox to a particular mail account for free.
This is for all gmail users who have used Gmail for a long period and now they are worried as their inbox is full, they have exceeded the 7 gb limit and so now they are scared to change their email account as they will not be able to recieve important mails sent to their previous email account and the will lose them.
But don’t worry. After you have exceeded the limit you can still receive mails sent to the account.
Here’s the trick.
1. Go to Your gmail account

2. Go to the settings > Forwarding and POP/IMAP

3. Select Forwarding and set your new email address.
(note: please select “delete mails copy” because you will nit be able to store any more mails in the old account.)

That’s it ! You have done it. but take care to leave at least 3mb free space in your old gmail account.