I read earlier that Zoho Mail was a free business email service provider for smaller organizations. Are they still providing it?

Zoho Mail still has its free plan. You can create professional email addresses with your company domain name. But their free plan has limitations. You can add only five free members. If you add one more user, it will upgrade to a paid plan.

Zoho mail has a plan called 'Forever free plan'. But, it has many limitations. The first limitation is the maximum number of users.

The Forever free plan supports up to five free members. Another limitation is the 25MB attachment limit. However, they offer five GB of storage space for each free Zoho Mail user.