Hi, how to reply a thread using Send Mail API?

Hi, how to reply a thread using Send Mail API?

Hi,

I try to send email via Zoho Email API and find out there is no param to send email as a reply. The new email is always sent as new thread, not a reply email in Zoho mail.

Is there anyway we can send email via API as a reply email? Just add 1 optional param such as "threadId" then we can solve this problem.

Thanks

PS:
Btw, in this page: https://www.zoho.com/mail/help/api/post-send-an-email.html, the params "content" is missing in params table on the left (while it's included in sample request on the right). Please add it.