[Dovecot] Major bug with hardlinks and lmtp

[Timo Sirainen]

On Fri, 2011-12-09 at 16:12 -0800, Brad Schuetz wrote:

> I have discovered that when a single piece of email is to be delivered
> to multiple users the message is being hard linked instead of copied
> into each mail box.  This is a major problem that makes LMTP unusable in
> an environment where each mailbox has it's own UID since the hard linked
> file will only be readable by one of the users.

This happens only if the users share the same GID. I already fixed this,
but since it's a rather large change it's only in v2.1.