Gordon Messmer wrote:
> 
> Mitch (WebCob) wrote:
> > [...] Gmail uses a hardlink-like system to basically reference count
> > messages received – saves on storage demands and makes their marketing
> > needs easier…
> >
> > Could something similar be accomplished with courier (not the marketing
> > – just the storage savings!)
> 
> I don't think it can be accomplished without a massive and fundamental
> change to courier.  On a unix fs, a hard link is just a reference to the
> destination file.  The link points to an inode which contains permission
> data, etc.  Either the first user to receive the message would have
> permission to modify it, or no one would.  The latter would require that
> the entire system drop the unix security model and start storing
> messages either in a central location, or in a DB like Exchange.
> Maildrop would likely have to be removed from the system, as well.

No, maildrop would likely have to be enhanced. It might have a function
to store the message as shareable or share it if it's shareable already
rather than making a copy.

Not that I think it is worth. Better ways to save storage may be to store
attachments using binary encoding, to use compression on files that have
not been searched in the last NNN days, et cetera.


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