Check message whether is reply message or not using Outlook API

Question

Is there any way to do this using&nbsp;Outlook Rest API&nbsp;(like can we make a request to group by&nbsp;conversationId). And on reading each messages in mailbox through rest api, how can we&nbsp;categorize&nbsp;that a particular msg is&nbsp;reply msg or not&nbsp;. If that is reply msg, then how can we find that msg's orginal msg(msg to which it was replied)&nbsp;&nbsp;&nbsp;On surfing through internet I found&nbsp;In-Reply-To, in&nbsp;Internet Message Header&nbsp;which have message Id of the msg to which it is replied. But in some cases even if it is replied msg it does not have&nbsp;internetMessageHeaders,&nbsp;&nbsp;For Eg.&nbsp; &nbsp; &nbsp; &nbsp; If we request '/messages' for user A &nbsp; &nbsp; &nbsp;InternetMessageHeaders&nbsp; are available for messages received to that mailbox, but messages which are replied from that mailbox dosen't have that header...Another case,&nbsp; &nbsp; &nbsp;Commonly, messages in sentMail will not have this header.

victor_ivanidze · Accepted Answer

Hi&nbsp;thinktoday, have a look at this:https://stackoverflow.com/questions/36412152/checking-if-a-mailitem-is-a-reply&nbsp;

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Check message whether is reply message or not using Outlook API

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