Alessandro Vesely wrote:
Gordon Messmer wrote:
Mitch (WebCob) wrote:
[...] Gmail uses a hardlink-like system to basically reference count
messages received ï saves on storage demands and makes their marketing
needs easierï
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

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.

If courier/maildrop was to be "enhanced" for this then perhaps a "virtual link" could work where a stub file with nothing much more than a URL to the original was stored, along with a bit of extra housekeeping meta data if needed (like a unique Delivered-To header etc). The original copy could be stored somewhere like /var/lib/courier/vmsg along with a simple "reference count" file and would not be removed until its reference count obviously hit 0.

--markc


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