using Interop.outlook and ews - c#

I am using EWS for searching for and displaying emails. However the final step of the project is to save specific messages as .msg files on the file system. I understand that this is not possible with EWS, so I will need to use Interop.Outlook to accomplish this. My question is: What is the best way to find the Outlook message given the information available from EWS. I have attempted to associate the Message.Id and ConversationId obtained from exchange via EWS with Outlook's messageId but have so far been unsuccessful.
Here is my current (failed) code for finding the ConversationID:
OUTLOOK.Application olApp = new OUTLOOK.Application();
OUTLOOK.NameSpace olNS = olApp.GetNamespace("MAPI");
OUTLOOK.MAPIFolder oFolder = olNS.GetDefaultFolder(OUTLOOK.OlDefaultFolders.olFolderInbox);
OUTLOOK.Items oItems = oFolder.Items;
String sFilter = string.Format("#SQL=\"http://schemas.microsoft.com/mapi/proptag/0x1035001F\" = '{0}'", missive.ConversationID.UniqueId);
object obj = oItems.Find(sFilter);
OUTLOOK.MailItem oEmail = (OUTLOOK.MailItem)obj;
if (oEmail != null)
{
return oEmail;
}
else
{
throw new Exception("MAIL ITEM NOT IN OUTLOOK");
}
As a side: I was looking for a reference for Outlookd filters That is the property names for the [property]=value version; and the hex values for use with the #SQL version. Does someone have a link to a good reference for that?

There's a ConvertIdType request you can use; see: https://msdn.microsoft.com/en-us/library/office/bb856559(v=exchg.140).aspx.
For a listing of MAPI properties and their DASL names and property tag values, see: https://msdn.microsoft.com/en-us/library/office/cc815517.aspx. Although Outlook Spy is a great tool for this as well.

Related

To filter mails from inbox which are sent to another recipient?

In Outlook Interop,
using Outlook = Microsoft.Office.Interop.Outlook;
To filter unread emails, I'm using the following code
Outlook.Application oApp = new Outlook.Application();
Outlook.NameSpace outlookNameSpace = oApp.Application.GetNamespace("MAPI");
Outlook.MAPIFolder inbox = outlookNameSpace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
Outlook.Items items = inbox.Items.Restrict("[Unread]=true");
Likewise, Is there a way to filter the mails sent to a specific recipient other than me.
Say, filter mails sent to abc#example.com.
My mail ID would also be present in those mails in To or in CC. I will be happier to find a possible way with Outlook interop.
You can use a search query like the following to search for a match on the PR_DISPLAY_TO MAPI property (replace 0x0E04001F with 0x0E03001F for PR_DISPLAY_CC)
#SQL="http://schemas.microsoft.com/mapi/proptag/0x0E04001F" LIKE '%abc#example.com%'
Keep in mind however that PR_DISPLAY_TO / PR_DISPLAY_CC may or may not contain the email addresses; they could just contain display names.
On the Extended MAPI level (C++ or Delphi), you can create a restriction on recipients (RES_SUBRESTRICTION / PR_MESSAGE_RECIPIENTS).
If using Redemption (I am its author - any language) is an option, you can use RDOFolder.Items.Restrict - unlike Outlook Object Model, it does expand To/CC/BCC queries into recipient sub restrictions on PR_DISPLAY_NAME and PR_EMAIL_ADDRESS properties on each recipient (RES_SUBRESTRICTION / PR_MESSAGE_RECIPIENTS / RES_OR / PR_DISPLAY_NAME | PR_EMAIL_ADDRESS).
set Session = CreateObject("Redemption.RDOSession")
Session.MAPIOBJECT = Application.Session.MAPIOBJECT
set Folder = Session.GetFolderFromID(Application.ActiveExplorer.CurrentFolder.EntryID)
set restrItems = Folder.Items.Restrict(" TO = 'abc#example.com' ")
You can also specify Recipients property in a query - it will be matched against recipients of all types (to/cc/bcc):
set restrItems = Folder.Items.Restrict(" Recipients = 'abc#example.com' ")

C# Outlook AddIn - Determine EWS Item ID for the selected Email

Is it possible to determine the Exchange Server ItemID for a MailItem (the selected Item in the active explorer)? The solution I am working on has an Outlook AddIn component and another component that accesses mail items through EWS.
I have code similar to the below in my Outlook addin:
Outlook.Explorer ActiveExplorer = Globals.ThisAddIn.Application.ActiveExplorer();
object selectedItem = ActiveExplorer.Selection[1];
Outlook.MailItem selectedEmail = selectedItem as Outlook.MailItem;
In this way I can access certain properties of the email but it is important to the workings of the overall solution that the property values are exactly the same as those returned by EWS. For example, if the property returned a time, it would be important that the time matched down to the millisecond.
If I had the ItemID I could bind to and work with the Item (from within the addin) using something like the below.
Item myItem = Item.Bind(MyExchangeService, MyItemID);
On a whim I have tried binding to MailItem.EntryID but I got a malformed ID error (which didn't surprise me). I have been trying to determine if the Exchange ID was available through MailItem.PropertyAccessor.GetProperty but I am not really familiar with accessing properties in this way and haven't had any luck so far.
Thoughts?
I came across the following Stack Overflow post which didn't exactly answer my question but changed my focus to converting the EntryID into the EWS ID rather than finding the EWS ID.
Exchange ItemID differs from GlobalAppointmentID for Outlook AddIn
With this new angle I was able to find the following site which directly addressed my issue.
https://bernhardelbl.wordpress.com/2013/04/15/converting-entryid-to-ewsid-using-exchange-web-services-ews/
I have posted the code here in full in case the link gets broken.
string ConvertHexEntryIdToEwsId(ExchangeService esb, string sID, string strSMTPAdd)
{
AlternateId objAltID = new AlternateId();
objAltID.Format = IdFormat.HexEntryId;
objAltID.Mailbox = strSMTPAdd;
objAltID.UniqueId = sID;
AlternateIdBase objAltIDBase = esb.ConvertId(objAltID, IdFormat.EwsId);
AlternateId objAltIDResp = (AlternateId)objAltIDBase;
return objAltIDResp.UniqueId;
}

EWS - Outlook Interop Synchronize

I'm using ExchangeServer 2010 SP2
and Outlook 2013
First I'm saving a Mail to the Draft folder using EWS
EmailMessage.Save()
After that I'm trying to open the mail via Interop
but I'm getting a COMException that the item doesn't exist
Outlook.Application app = new Outlook.Application();
Outlook.NameSpace mapi = app.GetNamespace("MAPI");
Outlook.MAPIFolder draftFolder = mapi.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderDrafts);
//Custom function to get EntryID
string entryId = GetMessageId(email,IdFormat.HexEntryId);
string storeId = draftFolder.StoreID;
MailItem item = null;
try
{
item = mapi.GetItemFromID(entryId, storeId);
}
catch (COMException)
{
//Item not found
}
Is there any way to force Outlook to sync the Draft folder with the Exchange server?
I have used
Session.SendAndRecieve(true)
but it doesn't show any effect and I can't find any other Interop functions doing the desired thing.
EDIT: When disabling Cache-Mode everything runs fine but as soon as I turn it on I have no clue how to force it to get the Message
Thank you very much!
You can either
wait until the sync finishes - use Namespace.SyncObjects collection, retrieve the first SyncObject object, call SyncObject.Start and wait for the SyncObject.SyncEnd event to fire.
On the Extended MAPI level (C++ or Delphi) or Redemption (I am its author, it wraps Extended MAPI and can be used in any language), open the message in the online mode by using the MAPI_NO_CACHE (0x200) flag (IMsgStore::OpenEntry in Extended MAPI or RDOStore.GetMessageFromID in Redemption).

How to get information about current user distribution list from outlook using WPF business app

In my WPF app, I need to enable/disable functionality based on the team. The team information is configured as outlook distribution list. Now I need retrieve this information from my App.
I googled and found the link
http://msdn.microsoft.com/EN-US/library/office/ff184638(v=office.15).aspx
Unfortunately it doesn't compile as it is. After bit of research I can make it compile by changing it by changing it as
currentUser = new Outlook.Application().Session.CurrentUser.AddressEntry;
However, this works only when outlook is opened, but when outlook is closed it throws the exception. Any idea?
Finally I managed to crack it. Apparently we need to briefly start the outlook application, the solution is explained in the link
https://groups.google.com/forum/#!msg/microsoft.public.outlook.program_vba/lLJwbwwl-XU/gRuQYRpJtxEJ
Hence I modified my code GetCurrentUserMembership() slightly to accomadate this change. Now it's working good. Tested in outlook 2007 and 2010.
The complete solution,
private List<string> GetCurrentUserMembership()
{
Outlook.Application outlook = new Outlook.Application();
Outlook.MailItem oMsg = (Outlook.MailItem)outlook.CreateItem(Outlook.OlItemType.olMailItem);
Outlook.Inspector oInspector = oMsg.GetInspector;
//session.Logon("", "", false, false);
var sb = new List<string>();
Outlook.AddressEntry currentUser = outlook.Session.CurrentUser.AddressEntry;
if (currentUser.Type != "EX") return sb;
var exchUser = currentUser.GetExchangeUser();
if (exchUser == null) return sb;
var addrEntries = exchUser.GetMemberOfList();
if (addrEntries == null) return sb;
foreach (Outlook.AddressEntry addrEntry in addrEntries)
{
sb.Add(addrEntry.Name);
}
return sb;
}
Could you please be more specific? What exception (error message and error code) do you get in the code?
I'd recommend starting from breaking the chain of calls and declare each property or method call on a separate line. Thus, you will find a problematic property or method call which fires an exception.
Most probably you need to call the Logon method of the Namespace class. As an example, you may find the C# app automates Outlook (CSAutomateOutlook) sample project helpful.

Outlook Interop 2010 C# Moving Item to Shared OlDefaultFolders.olFolderSentMail

SOmething odd is happening. I'm trying to copy and move and item from a local MAPI folder to a remtoe Sent Items folder using GetSharedDefaultFolder. It works for the inbox folder but not sent items, even though i have permissions to it. Any ideas would be great thank you.
The Error is 'Could not complete the operation. One or more parameter values are not valid'
The code sample is:
Outlook.MailItem cItem = (mailmsg as Outlook.MailItem).Copy() as Outlook.MailItem;
Outlook.NameSpace ns = this.Application.GetNamespace("MAPI");
//ns.Logon()
Outlook.Recipient recipient = ns.CreateRecipient("realusera#domain.com");
recipient.Resolve();
if (recipient.Resolved)
{
MessageBox.Show("Resolved user");
Outlook.MAPIFolder mapifld = ns.GetSharedDefaultFolder(recipient, Microsoft.Office.Interop.Outlook.OlDefaultFolders.olFolderSentMail);
cItem = (Outlook.MailItem)cItem.Move(mapifld);
}
According to MS documentation on this API, the olFolderSentMail is one of the default folders that is NOT allowed.
http://msdn.microsoft.com/en-us/library/microsoft.office.interop.outlook._namespace.getshareddefaultfolder.aspx
Excerpt:
FolderType can be one of the following OlDefaultFolders constants: olFolderCalendar, olFolderContacts, olFolderDrafts, olFolderInbox, olFolderJournal, olFolderNotes, or olFolderTasks. (The constants olFolderDeletedItems, olFolderOutbox, olFolderJunk, olFolderConflicts, olFolderLocalFailures, olFolderServerFailures, olFolderSyncIssues, olPublicFoldersAllPublicFolders, olFolderRssSubscriptions, olFolderToDo, olFolderManagedEmail, and olFolderSentMail cannot be specified for this argument.)

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