C# Managed EWS get email By ID from shared mailbox

Question

I am using EWS to manage emails of a shared mailbox through a console application.

var email = EmailMessage.Bind(serviceInstance, new ItemId(id));

Answer 1

The reason according to the MS documentation is:

when you move or copy an email message into a different folder, a new item is created in the new folder with a unique item ID, and the original message is deleted.

Therefore you get the exception: The specified object was not found in the store.

Guid myPropertySetId = new Guid("{20B5C09F-7CAD-44c6-BDBF-8FCBEEA08544}"); 
ExtendedPropertyDefinition myExtendedPropertyDefinition = new ExtendedPropertyDefinition(myPropertySetId, "MyExtendedPropertyName", MapiPropertyType.String); 
message.SetExtendedProperty(myExtendedPropertyDefinition, "MyExtendedPropertyValueIdentifingAnEmailMessageToBeMoved");
message.SendAndSaveCopy(); 

ItemView view = new ItemView(5); 
SearchFilter searchFilter = new SearchFilter.IsEqualTo(myExtendedPropertyDefinition, "MyExtendedPropertyValueIdentifingAnEmailMessageToBeMoved"); 
view.PropertySet = new PropertySet(BasePropertySet.IdOnly, ItemSchema.Subject, myExtendedPropertyDefinition); 
FindItemsResults<Item> findResults = service.FindItems(WellKnownFolderName.SentItems, searchFilter, view); 

Use for every email message a unique identifying value in order to get one search result.

Please note that this work around is the officially (by MS) suggested approach as described in the documentation.