[Dovecot] Dovecot shared quota with Maildir

Jorgen Lundman lundman at lundman.net
Tue Mar 10 04:59:24 EET 2009


Since I could issue an LDAP query for 
(&(uidNumber=%uid)(gidNumber=%gid)) for homeDirectory to retrieve all 
home directory paths, and associated mailDirSize files, I wonder if I 
could extend dovecot to allow us to handle shared quota like the 
fs-quota used to work.

Using symlinks between accounts would very quickly deteriorate.

Lund




Jorgen Lundman wrote:
> 
> Hello list,
> 
> We are in the process of exploring the idea of moving from UFS with 
> fs-quota to using softquotas in Dovecot (probably Maildir type, stored 
> in LDAP, all ontop of NFS).
> 
> I have it setup, and it works rather well so far.
> 
> But there is one situation we can currently support, which I can not see 
> a solution for with soft-quotas.
> 
> Generally customers get 1 email, with 1 quota.
> 
> But it is also possible for customers to get 1 quota, but create 
> multiple mail accounts, all sharing the same quota. This is done by 
> using the same UID for each account when using fs-quota.
> 
> (It is not that each account gets a fraction of the quota, but that all 
> accounts add up to the one quota).
> 
> Is this still possible to do with soft-quotas. To share one set. Dovecot 
> would have to go count files in multiple mail-directories so I would 
> guess no.
> 
> Lund
> 

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