Dan's WebDAV 101

There are not many examples on doing doing impersonation for Exchange Powershell and non of the ones I see currently cover a few of the important gotccha’s. So, I put this together and wish to share. Impersonation and Exchange PowerShell: ...

Sending mail using System.Net.Mail with SSL will fail: System.Net. NetworkCredential aCred = new System.Net. NetworkCredential ( "myacct" , "mypassword" ); SmtpClient smtp = new SmtpClient ( "smtp.mail.myserver.com" , 465); smtp.EnableSsl...

OK, WebDAV does not have the ability itself to get a list of mailboxes. However you can use other APIs and even use an OWA call to get a list of mailboxes. Reading the GAL: WebDAV itself cannot do this. You could use the OWA GALFIND command...

// C# sample using Exchange Web Service Proxy classes to list unread messages in an inbox using a restriction. private void FindInFolder() { // TODO: Put this code into a winform and call from a button: // TODO: create 3 text boxes called txtRequest...

' How to add a holiday to a calendar using VB and CDO 1.21. ' ' This example code shows how to add a holiday to a calendar using VB and CDO 1.21. ' Set a reference to CDO 1.21 and do the TODO sections in the code. ' Holidays are All Day Appointments with...

I was recently asked this question similar to this: How can we search on unmounted EDB files? Are there any API's that I can use to access the mails in unmounted EDB? There are two answers: “No” and “It’s a bad idea”. Further:...

Here is a helpful sample of using EWS to get a list of calendar items and displaying them in a ListView. You should be able to use this with he sample I published prior on creating a CalendarView: Sample: Using Calendar Views with EWS. ...

Some customers (developers) wish to use Basic Authentication when Forms Based Authentication (FBA) is enabled for Outlook Web Access (OWA). If OWA's FBA is enabled, all WebDAV access needs to be FBA authenticated - which means significant changes need...

While Microsoft products follow many RFC guidelines for VCALENDAR/iCAL, it does not mean that they support development of VCALENDAR/iCAL directly. Microsoft has APIs which can build and read such content. Working with those APIs is supported; however...

To send an email with WebDAV, you will you will need to create/recreate the item with a WEBDAV PUT using the MIME of the message. It gets tricky when working with attachments. To get around the complexity of sending an email with an attachment, you may...

There is no mechanism to add an attachment in WebDAV. You will need to create/recreate the item using a WebDAV PUT. The text you would be putting would be the mime of the item, which also contains the attachment. It’s useful here to use CDOSYS to create...

When doing a WebDAV or any other search, you will likely see the .EDB file expands. When performing a search against a mailbox using WebDAV or any other API, you may see the .EDB file grow in size. Don't panic, this is normal. When a search is performed...

When working with Exchange Web Services (EWS) to do calendaring operations, you will likely run into the need to define calendar views. A calendar view is a restriction/filer on the timespan of appointments and meetings you want to see in the calendar...

If you see "The Month parameter must be in the range 1 through 12." thrown using the 1.0 version of the Exchange Managed API when dealing with non-DST timezones, then you should look at upgrading to the 1.1 version of the Exchange Managed API - the issue...

'----------------------------------------------------------------------------------- ' ReadFileText - Used to read a file in a folder. ' Parameters: ' sFile - The file to read ' ' Returns: ' A string containing the content of the file. '-------------...

Here is an example: 'How to read the Inbox messages and delete attachments over a given size using VB and CDO 1.21 ' This example deletes all jpg file attachments over a certain size in an inbox. Const CONST_MAX_JPG_ATTACHMENT = 3000 ' TODO: Change...

Single sign-on applications usually use an ISAPI Extension on Exchange servers in order to swap-out credentials being passed to OWA. This type of manipulation is not supported by Microsoft. In fact any thing which augments the behavior in this way is...

This VBSript sample uses WebDAV to read the mime of a message item and write it to disk. dim sHREF dim sUserName dim sPassword dim sResponse dim HttpWebRequest dim sHREF dim sUserName dim sPassword dim sResponse dim HttpWebRequest sHREF = " http...

'------------------------------------------------------------------------------- ' WriteFileText - Used to write an item to a file in a folder. ' Parameters: ' sFile - The file to read ' ' Returns: ' A string containing the content of the file. '----...

' This example shows how to enumerate attachments on a message. X-MS-ENUMATTS will ' return phantom urls to attachments on the message. These URLs can be used with GET ' and DELETE (starting with Exchange 2003 SP1). ' For listing and reading an attachment...

When calling PowerShell from managed code, you need to be aware of what is being returned and to not process properties returned always as strings. When you get information you were not expecting or no info returned from the call, you should look at TypeNameOfValue...

Ahhh thats a big one... What is supported: • Non-recurring appointments • Contacts in Microsoft Outlook that you create or modify • Folders that you create in Outlook and in Exchange 2000 Server or Exchange Server 2003 • E-mail messages that you create...

One area I do developer support for is EAS development with those who have an EAS client developmnet license and have a specific support agreement in thier Premier contract for EAS developer support - these are needed to get any EAS developer support...

Since HasAttachments does not really give you the number of file attachments, we you will find that you need to work around it. You can use code like that below to get the real count of file attachments on an item. // --------------------------...

So, your trying to get "all properties" using WebDAV. Well, hate to break it to you, but there is no way unless you know what every property is and specify it. You will find the same limitation in other messaging APIs - just pick any of them. Now, you...