Deferred e-mails

When I send a deferred e-mail, the message will show it
was received on the day it was created.
I want the message to be received from the deferred
delivery date.
If a message is deferred for 1 week, anything that was
received prior to the deferred message will show on the
inbox before the deferred message. Some messages aren't
seen by the people I send deferred messages to because
they didn't see them.