The user management is done by Dovecot, so as soon as a user logs in, the user / password query is sent to a database, which also queries the quota.
Since Postfix rewrites all alias email addresses to the local users, this works perfectly. Dovecot manages the local users + the quota in the database and can tell Postfix via service check if the quota is reached or not. Mit freundlichen Grüßen Yours sincerely Pascal Rudolf -----Ursprüngliche Nachricht----- Von: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> Im Auftrag von Wietse Venema Gesendet: Freitag, 23. April 2021 20:09 An: Postfix users <postfix-users@postfix.org> Betreff: Re: AW: Change default reject message rud...@padaru.de: > Is it possible to check the quota status from the receiver in the > pickup module with a sql query or something else to get the same > behavior as when the mail passes the smtpd module? There currenly is no such feaure, but I think that one could be added in Postfix 3.6. How does Dovecot know what mailbox quota to check, when all your recipients are aliased? Wietse