A user sends a mail and requests delivery and reading comfirmation.
Delivery confirmation works well.
But read confirmation from many recipients (defferent message to message) are not incorporated into the tracking section of the original message. Reading confirmation messages are delivered (user cannot be sure of all of them as messages are sent to lots of recipients) and Outloom is set in order to process those messages on arrival.
But still, reading confirmation are incorporated only for few recipients, but not for all. Recipients whose read confirmation is not processed differs message to message.
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