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Exchange Web Services (EWS) VB.NET

Posted on 2014-11-05
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Last Modified: 2014-11-05
Morning,

I am creating a program that integrates with an Exchange Mailbox for Processing.

I wish to remove the part of the process that requires Outlook to be open a server and processing rules, so I have turned to using EWS.

The problem I have am having is return the 'FROM' field.

My code below I am able to connect to my Exchange Server and return the Category, To Field etc. perfectly fine, yet unable to return the From.

A lot of the documentation out there is written in C# of which i have NO experience.

Anyone pointing me in the right direction would be grand.

My Code:

        Dim exch As ExchangeService = New ExchangeService(ExchangeVersion.Exchange2007_SP1)
        Dim Uri As Uri

        Uri = New System.Uri("https://server/EWS/Exchange.asmx")
        exch.Url = Uri
        exch.UseDefaultCredentials = False
        exch.Credentials = New System.Net.NetworkCredential("ACCOUNT", "PASSWORD", "DOMAIN")

        exch.ImpersonatedUserId = New ImpersonatedUserId(ConnectingIdType.PrincipalName, "itprocessing@hq.freshinsurance.co.uk")

        ServicePointManager.ServerCertificateValidationCallback = AddressOf ValidateRemoteCertificate

        Dim iv As ItemView = New ItemView(10) ' return first 10 pages
        iv.Traversal = ItemTraversal.Shallow

        Dim InboxItems As FindItemsResults(Of Item) = Nothing

        InboxItems = exch.FindItems(WellKnownFolderName.Inbox, iv)

        For Each i As Item In InboxItems

            Console.WriteLine(i.Subject)
            Console.WriteLine(i.Categories)
            Console.WriteLine(i.DisplayTo)
            Console.WriteLine(i.HasAttachments)

            Dim strCat As String = i.Categories.ToString
        Next

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Comment
Question by:Lynchie435
2 Comments
 
LVL 22

Accepted Solution

by:
Snarf0001 earned 500 total points
ID: 40423752
FindItems is a generic method that's used for various different actual objects, not just email.
When you're getting it from WellKnownFolderName.Inbox, it will actually return objects that are type "EmailMessage", which does have the From address, you just have to cast it first.

DirectCast(i, EmailMessage).From

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Author Closing Comment

by:Lynchie435
ID: 40423828
Hi Snarf0001,

That doesn't appear to  the case as its Blank.

However you put me on the right track and it was

Console.WriteLine(DirectCast(i, EmailMessage).Sender.Name)

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That i was looking for :)

Cheers,

James
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