Friday, December 26, 2008

How to parse mails in Microsoft Outlook using C#?

We often get hundreds of mails in our Outlook Inbox and want to do some processing with these mails. This scenario arises mainly with the customer support people who wanted to act depending on the mail subject line. Here is a simple code to parse the Microsoft Outlook Inbox:

static void ReadMail()
Microsoft.Office.Interop.Outlook.Application app = null;
Microsoft.Office.Interop.Outlook._NameSpace ns = null;
Microsoft.Office.Interop.Outlook.MailItem item = null;
Microsoft.Office.Interop.Outlook.MAPIFolder inboxFolder = null;

app = new Microsoft.Office.Interop.Outlook.Application();
ns = app.GetNamespace("MAPI");
ns.Logon(null, null, false, false);

inboxFolder = ns.GetDefaultFolder(Microsoft.Office.Interop.Outlook.OlDefaultFolders.olFolderInbox);
// subFolder = inboxFolder.Folders["Inbox"]; //folder.Folders[1]; also works
Console.WriteLine("Folder Name: {0}, EntryId: {1}", inboxFolder.Name, inboxFolder.EntryID);
Console.WriteLine("Num Items: {0}", inboxFolder.Items.Count.ToString());

System.IO.StreamWriter strm = new System.IO.StreamWriter(@"d:\Test\Inbox.txt");
for (int counter = 1; counter <= inboxFolder.Items.Count; counter++)
item = (Microsoft.Office.Interop.Outlook.MailItem)inboxFolder.Items[counter];
Console.WriteLine("Item: {0}", counter.ToString());
Console.WriteLine("Subject: {0}", item.Subject);
Console.WriteLine("Sent: {0} {1}", item.SentOn.ToLongDateString(), item.SentOn.ToLongTimeString());
Console.WriteLine("Sendername: {0}", item.SenderName);
strm.WriteLine(counter.ToString() + "," + item.Subject + "," + item.SentOn.ToShortDateString() + "," + item.SenderName);
catch (System.Runtime.InteropServices.COMException comException)
ns = null;
app = null;
inboxFolder = null;

Hope this helps you :)


Anonymous said...

Thank you very much for an excellent piece of code.

crown said...


The example is good. But it triggers the outlook security prompt. Am I missing something ?


Alex said...

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Anonymous said...

Crown... I "solved" that problem by modifying my settings in the Trust Center. Unfortunately, it's not a good solution. I had to tell Outlook to not warn me about suspicious activity. That makes me a little paranoid, but it solved the programmatic issue.

Alex said...

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