When dealing with Autocrypt headers derived from a message, some
sender addresses will not have a legitimate/complete header
associated with them. When a given sender address has no complete
header of a specific type, it should "reset" the state of the
associated address.
When dealing with Autocrypt headers derived from a message, some sender addresses will not have a legitimate/complete header associated with them. When a given sender address has no complete header of a specific type, it should "reset" the state of the associated address.