Can you think of a more formal synonym to replace this adjective?
(Use a thesaurus if you need to!)
miserable​

The author supports the claim that ordinary and digital mail are very different by sharing a hypothetical story as an example of the subject. The simple invitation and the specific time and place where it is supposed to be held are simple details that can be intercepted with digital mail compared to an ordinary mail that's slow and takes a lot of time and energy to be delivered to the receiver.