Re: Mail semantics: mail group, permissions, MTA/MDA suid/sgid and the like

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Axel Thimm (Axel.Thimm@xxxxxxxxxx) said: 
> > > a) Does every MDA and MUA need to do both locking mechanisms or is
> > >    dotlocking the fallback to fcntl? The latter would be an issue, so
> > >    it should probably be both for every MDA/MUA.
> > 
> > Short answer is use fcntl or die.
> 
> OK, then we should remove current dotlock functionality from MTA/MDAs?
> I'm fine with that, it just needs to be a global and wide known policy
> so that MTA1 doesn't dotlock while MDA5 fcntl-locks and both think
> they own the mbox.

The long-standing policy in Core was to unly use fcntl - it's the
one thing that should be supported by all clients, stands a chance
of working over NFS, etc. So, explicitly codifying this makes sense.

Bill

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