Calendar notifications sent using an @gmail.com email!

Calendar notifications sent using an @gmail.com email!

Hello,
I have registered my Zoho account using a gmail account (say:user@gmai.com) then created my organization, domian and mail accounts (say:  info@mydomain.com.

When I create an event in Zoho calendar, users gets notifications from my gmail (user@gmail.com) and not from my zoho mail domain.
I also noticed that owner of the calendar is user@gmail.com not @mydomain.com.
How can I fix this? I want notifications to be sent using the info@mydomain.com.

Note: I can login to Zoho mailbox using both the gmail and the zoho email addresses.