postfix alias and dovecot quota

[Matthijs de Groot]

> On 30 Jun 2014, at 15:01, Nathan Schultheiss <nathan at schultheiss.fr> wrote:
> 
> ...
> 
> I search since several weeks how to fix that and for postfix ask the quota-service with the real user email and not the alias.
> Because Postfix know the real user email because it's search it on the first time before ask Dovecot...
> 
> I don't understand that postfix can't have a feature for check the quota-service with the real user email and not the alias...
> 
> It's possible that I was wrong and not really understand the Postfix doku (that's really possible).
> 
You’re not: http://www.postfix.org/SMTPD_POLICY_README.html#protocol

> If anobody have one idea that would be great, because I'm really lost, and I think i'm not alone :)

One idea is to use the same data source for the userdb of postfix and dovecot. Mail alias data that postfix uses would then also become available for dovecot. Dovecot would then be able to correctly resolve mail aliases to users and provide useful quota information about the mailbox.