msgraph-sdk-php
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Messages with isReadReceiptRequested can't suppress
When patching an e-mail message with a Read Receipt Request like this:
$request = $graph->createRequest('PATCH', '/me/message/' . $office365MessageId);
$request->attachBody(['isRead' => true]);
$request->execute();
Outlook automatically sends the Read Receipt.
In the old EWS there is a way to suppress this: https://learn.microsoft.com/en-us/exchange/client-developer/web-service-reference/suppressreadreceipt
Is this possible via this sdk?