This article discusses about how can we access the inbox through MAPI using C# .NET. It also discusses about how to store the attachment in the local directory, how to create a folder in the inbox
Need to add the reference
Microsoft CDO 1.21 Library to the project
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//Declarations
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MAPI.Message objMsg, objMsg_Arch;
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MAPI.Messages objMsgs;
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MAPI.Attachment objAttach;
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MAPI.Attachments objAttachments;
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MAPI.Folder objFolder;
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MAPI.AddressEntry objAddressEntry;
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int intTotalMsgs;
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string strLocalDir;
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//To get the total message count in the inbox
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objFolder = (Folder)objSession.Inbox;
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objMsgs = (Messages)objFolder.Messages;
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intTotalMsgs = (int)objMsgs.Count;
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//To get the sender
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objMsg = (MAPI.Message)(objMsgs.get_Item(intMsgLoop));
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objAddressEntry = (AddressEntry)objMsg.Sender;
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//To save the attachment to local disk
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objAttachments = (Attachments)objMsg.Attachments;
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objAttach = (Attachment)objAttachments.get_Item(intMsg);
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if ((CdoAttachmentType)objAttach.Type == CdoAttachmentType.CdoFileData)
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{
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objAttach.WriteToFile(strLocalDir + objAttach.Name.ToString());
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}
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//To create a folder in the inbox
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Folder objFolder;
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Folders objFolders;
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Folder objItemFolder;
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int intFolderCount;
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string strFldrArch;
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bool blnOK;
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objFolder = (Folder)objSession.Inbox;
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objFolder = (Folder)objSession.GetFolder(objFolder.ID,objFolder.StoreID);
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objFolders = (Folders) objFolder.Folders;
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intFolderCount = (int)objFolders.Count;
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for (int intLoop = 1; intLoop <= intFolderCount; intLoop++)
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{
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objItemFolder = (Folder)objFolders.get_Item(intLoop);
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if (objItemFolder.Name.ToString() == strFldrArch)
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{
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blnOK = true;
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objFolder = objItemFolder;
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break;
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}
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}
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if (!blnOK)
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{
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objFolder = (Folder)objFolders.Add(strFldrArch);
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objFolder.Update(Missing.Value, Missing.Value);
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}
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//To delete the message from the inbox
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objMsg.Delete(Missing.Value);
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//To forward the message
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Message objMsgFwd;
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Recipients objRecipients;
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objMsgFwd = (MAPI.Message)objMsg.Forward();
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objRecipients = (Recipients)objMsgFwd.Recipients;
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objRecipients.Add(<RecipientAddr>, Missing.Value, CdoRecipientType.CdoTo,
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Missing.Value);
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objMsgFwd.Text = <Body Message>;
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objMsgFwd.Recipients = objRecipients; objRecipients.Resolve(Missing.Value);
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objMsgFwd.Send(false, Missing.Value, Missing.Value);
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//To move the message to a folder
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object objFolderID, objStoreID;
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objFolderID = objFolder.ID; //objFolder is the folder where the msg to
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be moved
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objStoreID = objFolder.StoreID;
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objMsgArch = (MAPI.Message)objMsg.MoveTo(objFolderID, objStor
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Accessing the inbox through MAPI using C# .NET 
