email address issue

email address issue

Hi!
I am start using zoho to start my company's email marketing campaign, but I can not send the email because is showing that Your email address is already configured as a sender address in another account.
But I created a new business email address on google workspace and no one else is using this address. Please find attached screenshot of the problem and try to resolve it sooner so that after wasting too much days on this problem I can start my email campaign.