Using the free ZOHO email, how many different email addresses can I send an announcement to, in a single mailing?

Using the free ZOHO email, how many different email addresses can I send an announcement to, in a single mailing?

I send email announcements to a group of about 450 people once or twice each week. Will Zoho free email allow this in a single sending?

If not, what can I expect that I could do?

Thanks,

Joab70