In one of our products we are required to insert an email item into exchange, After much nail biting after realising that Microsoft Exchange WebService Documentation is extremely poor. I have come up with a solution that accepts a FileInfo Object and a FileStream and puts the file into a 'Public Folder' into exchange.
Heres the code
public static void InsertIntoExchange(FileInfo file, FileStream stream)
{
try
{
using (MemoryStream ms = new MemoryStream())
{
if (stream.Length == 0)
throw new Exception(string.Format("File Error: {0} Contains Zero Bytes",file.FullName));
Folder selectedPublicFolder = null;
//Set your Aspose Licence Here
MapiMessage mapiMessage = MapiMessage.FromStream(stream);
mapiMessage.Save(ms);
var properties = mapiMessage.NamedProperties.Values.Cast().ToList();
var propProjectId = properties.Where(y => y.NameId == "ProjectID").FirstOrDefault();
var propFileStatus = properties.Where(y => y.NameId == "FileStatus").FirstOrDefault();
if (propProjectId != null && propFileStatus != null)
{
string projectId = propProjectId.GetString();
Enumerators.FileStatus fileStatus = (Enumerators.FileStatus)Enum.Parse(typeof(Enumerators.FileStatus), propFileStatus.GetString());
if (fileStatus == Enumerators.FileStatus.Uploaded)
{
throw new Exception("File Already Uploaded");
}
else if (fileStatus == Enumerators.FileStatus.Failed)
{
throw new Exception("File Failed");
}
else
{
selectedPublicFolder = //Find Exchange Public Folder
if (selectedPublicFolder == null)
{
throw new Exception("Public Folder Was Not Found");
}
FolderIdType f = new FolderIdType();
f.Id = selectedPublicFolder.Id.UniqueId;
try
{
CreateItemType ciType = new CreateItemType()
{
MessageDisposition = MessageDispositionType.SaveOnly,
MessageDispositionSpecified = true,
SavedItemFolderId = new TargetFolderIdType()
{
Item = f
},
Items = new NonEmptyArrayOfAllItemsType()
};
using (MemoryStream tms = new MemoryStream())
{
//Load AsposeLicence Again
MailMessage m = MailMessage.Load(stream);
m.Save(tms);
MessageType msg = new MessageType()
{
MimeContent = new MimeContentType()
{
Value = Convert.ToBase64String(tms.ToArray())
},
IsRead = true
};
ExtendedPropertyType type = new ExtendedPropertyType();
PathToExtendedFieldType epExPath = new PathToExtendedFieldType();
epExPath.PropertyTag = "0x0E07";
epExPath.PropertyType = MapiPropertyTypeType.Integer;
type.ExtendedFieldURI = epExPath;
type.Item = "1";
msg.DateTimeSent = m.Date;
msg.ExtendedProperty = new ExtendedPropertyType[1];
msg.ExtendedProperty[0] = type;
ciType.Items.Items = new ItemType[1];
ciType.Items.Items[0] = msg;
CreateItemResponseType response = Global.ExchangeServiceBinding.CreateItem(ciType);
if (response.ResponseMessages.Items[0].ResponseClass == ResponseClassType.Error)
{
throw new Exception(response.ResponseMessages.Items[0].MessageText);
}
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
mapiMessage.NamedProperties.Remove(propFileStatus.Tag);
MapiNamedPropertyMappingStorage mappingStorage = mapiMessage.NamedPropertyMapping;
Guid PS_PUBLIC_STRINGS = new Guid("00020329-0000-0000-C000-000000000046");
// Create a named property
MapiProperty stringProperty = new MapiProperty(mappingStorage.GetNextAvailablePropertyId(Aspose.Email.Outlook.MapiPropertyType.PT_UNICODE),
Encoding.Unicode.GetBytes(((int)fileStatus).ToString()));
// Set message property
mapiMessage.SetProperty(stringProperty);
string stringNameId = "FileStatus";
mappingStorage.AddNamedPropertyMapping(stringProperty, stringNameId, PS_PUBLIC_STRINGS);
stream.Close();
mapiMessage.Save(file.FullName);
}
}
}
else if (propProjectId == null)
{
throw new Exception("File Failure: Project ID was not found in file: " + file.Name);
}
else if (propFileStatus == null)
{
throw new Exception("File Failure: FileStatus was not found in file: " + file.Name);
}
else
{
throw new Exception("File Failure: The File May Not Be a valid file: " + file.Name);
}
}
}
catch(Exception ex)
{
throw ex;
}
}
If however you are using Exchange 2010 the best way is to insert the object into the 'Inbox' First then perform a 'Move' operation as Exchange Mangles the Header and Mime object if a direct insert occurs.
Add this at the end of the Insertion Method Above
//*Attempt to Move Item *//
var newId = (((ExchangeWebServices.ItemInfoResponseMessageType)
(((ExchangeWebServices.BaseResponseMessageType) (response))
.ResponseMessages.Items[0]))
.Items.Items[0]).ItemId;
if (newId != null)
{
MoveItemType t = new MoveItemType()
{
ItemIds = new BaseItemIdType[]
{
newId
},
};
t.ToFolderId = new TargetFolderIdType();
t.ToFolderId.Item = f;
var moveItemResponse = Global.ExchangeServiceBinding.MoveItem(t);
if (response.ResponseMessages.Items[0].ResponseClass ==
ResponseClassType.Error)
{
throw new Exception("File Uploaded but it failed to move from Inbox");
}
}
