Currently, when declaring mailbox routes, it’s only possible to pass a string/symbol, which gets camelized into a class name:
`routing /^save@/i =>
\./i => :replies```
Would it make sens to allow the following syntax:
routing /noa/i, class_name: ‘LongHaul::NOAMailbox’
routing /delivery/i, class_name: ‘LastMile::DeliveryMailbox’
This way, all the mailboxes wouldn’t have to live in the same directory.