Sis attachment deduplication

Hi.

Two questions:

1. Is this now reasonably stable for large mailboxes (c 2mm messages)?
2. Will this leave the filename in the message body unchanged? So for example if I have the same attachment called proposalfromvendor.pdf and proposaltoclient.pdf in two different emails, will the original names be kept ? Or will it replace the filename with some kind of numeric hash ?

Many thanks.

Laeeth

Sent from my iPad