Hi @NRatandhayara,
Automated emails from deals require Marketing Hub Professional, there’s unfortunately no way around that if you want to send those emails using HubSpot. These features are simply locked in Marketing Hub Professional or Enterprise.
With Sales Hub Enterprise you can automate the sending of sequences, which is similar: Enroll and unenroll contacts in sequences using workflows
You can look into third-party solutions, like Outfunnel, for a more affordable option.
Best regards