How can I identify the mail is Draft mail or not

I need to Identify the mail from the pst is draft mail or not

I tried GetPropertyInt32(MapiPropertyTag.PR_MESSAGE_FLAGS) == 8;
but it does not work.

Hi @hemalp,
You can use next code:
MapiMessage mapiMessage = MapiMessage.Load(fileName);
bool isDraft = (mapiMessage.Flags & MapiMessageFlags.MSGFLAG_UNSENT) == MapiMessageFlags.MSGFLAG_UNSENT;