Read outlook email by interop.office.outlook.dll

Question

_{Wednesday, November 28, 2018 4:47 AM}

Read outlook email based on filters like
From email address
Subject
Date

All replies (2)

_{Thursday, November 29, 2018 6:23 AM ✅Answered}

Hi Guhananth,

Read outlook email based on filters like
From email address
Subject
Date

You could refer to the following code to read emails, after that you could filter the emails:

using System.Runtime.InteropServices;
using Microsoft.Office.Interop.Outlook;

        static void Main(string[] args)
        {
            Application outlookApplication = null;
            NameSpace outlookNamespace = null;
            MAPIFolder inboxFolder = null;
            Items mailItems = null;

            try
            {
                outlookApplication = new Application();
                outlookNamespace = outlookApplication.GetNamespace("MAPI");
                inboxFolder = outlookNamespace.GetDefaultFolder(OlDefaultFolders.olFolderInbox);
                mailItems = inboxFolder.Items;

                Console.WriteLine(mailItems.Count);

                foreach (MailItem item in mailItems)
                {
                    var stringBuilder = new StringBuilder();
                    stringBuilder.AppendLine("From: " + item.SenderEmailAddress);
                    stringBuilder.AppendLine("To: " + item.To);
                    stringBuilder.AppendLine("CC: " + item.CC);
                    stringBuilder.AppendLine("");
                    stringBuilder.AppendLine("Subject: " + item.Subject);
                    stringBuilder.AppendLine(item.Body);

                    Console.WriteLine(stringBuilder);
                    Marshal.ReleaseComObject(item);
                }
            }
            //Error handler.
            catch (System.Exception e)
            {
                Console.WriteLine("{0} Exception caught: ", e);
            }
            finally
            {
                ReleaseComObject(mailItems);
                ReleaseComObject(inboxFolder);
                ReleaseComObject(outlookNamespace);
                ReleaseComObject(outlookApplication);
            }

            Console.WriteLine("OK");
            Console.ReadKey();
        }

        private static void ReleaseComObject(object obj)
        {
            if (obj != null)
            {
                Marshal.ReleaseComObject(obj);
                obj = null;
            }
        }

More details, please check these articles:

Here's how to read emails from Outlook using C#

Outlook Integration in C#

How to use the Microsoft Outlook Object Library to retrieve a message from the Inbox by using Visual C#

Best regards,
Dillion

---

_{Thursday, June 20, 2019 4:07 PM}

Hi,

Note though that Outlook is an end user application and was never intended to be used as a programming library:
https://support.microsoft.com/en-us/help/257757/considerations-for-server-side-automation-of-office

I would favor using https://en.wikipedia.org/wiki/Post_Office_Protocol, https://en.wikipedia.org/wiki/Internet_Message_Access_Protocol or a dedicated API for my mail server.