Zoho Mail Free Limitations

Zoho Mail Free Limitations

I just created an account with zoho mail free personal.  I wish you all were upfront with the limitations on the free mail on the pricing page and you may have heard this too many times, but out of confusion, I will ask again.  I would like to know what the limitations are for the free mail. Is it true that there a limit to how much mail I can send per day? A limit to storage? A limit to attachments? A limit for inactivity? Is there any more limits? After all, the mail is free and there is a price to pay and I need to know what that is.  Thank you so much for understanding.