Does anyone allow unlimited or extremely large quotas?

Kenneth Marshall ktm at
Tue Nov 16 08:46:39 EST 2010

On Tue, Nov 16, 2010 at 08:38:49AM -0500, Adam Tauno Williams wrote:
> On Tue, 2010-11-16 at 14:12 +0100, Rudy Gevaert wrote: 
> > On 11/16/2010 12:30 PM, Dave McMurtrie wrote:
> > > Good morning,
> > > This may be slightly off-topic, so apologies in advance.  Is there
> > > anyone out there who allows unlimited quota for their users or provides
> > > extremely large quotas when asked for?
> > > If so, can you describe any problems you've had with this?
> > We have users with > 5 GB.
> Our largest quota's a 4GB; without any issues.
> I think the issue you will encounter first is clients will start to fall
> down when folders exceed a 'reasonable' number of messages.  Common IMAP
> clients I've seen start to exhibit severe performance issues beyond a
> few hundred thousand messages.
> > We haven't seen any problems with them.  The only general problem we 
> > face is taking backups of a full store.  It just takes very long to 
> > complete full backups.  (Of course that isn't tied to large or no quota.)

We have quotas up to 40GB currently and depending on the use everything
works very well. As others have mentioned, keeping the number of messages
per folder is very important for many IMAP/POP3 clients, but if that is
done everything works.


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