No Undelivered email bounce when sending emails to prospects from ZohoCRM

No Undelivered email bounce when sending emails to prospects from ZohoCRM

Hi,

I am using ZohoCRM (free version) to structure the sales and prospect activities for my little company.
I noticed that when sending emails to prospects through ZohoCRM, I do not get any bounce message on my email when the targeted email is not correct, thus I never know if the message has been delivered or not, if the email typed is correct or not...

How can I configure this aspect?
Thanks,
Sabrina