Akka sharded actor mailbox during crash

Hi Team
I have two questions related to shard actor restart. I could not get the answers in akka documentation, so posting it here. could you please answer?

  1. What happens to the messages in a sharded actors mailbox when its crashed and started back in another node? will they be retained?

  2. What if one of the messages in the mailbox was sent to by the self actor (using context.self ! message)

Thank you
Anand Krishnan