If you are not restricted to using dovecot and postfix only, I suggest having a look at policyd "cluebringer" - from https://wiki.policyd.org/
Works great to set quotas per user or per domain.
On 06.12.20 21:13, Peter Folta wrote:
[Dovecot version 2.3.11.3 (502c39af9)]
Hi all,
I’m using Dovecot’s quota-status service to let Postfix check the recipient’s quota before accepting emails following the guide here: https://blog.sys4.de/postfix-dovecot-mailbox-quota-en.html https://blog.sys4.de/postfix-dovecot-mailbox-quota-en.html. This works well for inbound emails.
I would like to set up something similar for outbound email, i.e. if a user is over quota, they should not be allowed to send new emails. At the moment, the setup is in a bit of an inconsistent state: Users that have exceeded their quota are still able to send outbound emails but saving them in their Sent folder will fail leaving them without a copy.
I have tried using Dovecot’s quota-status in Postfix’s smtpd_send_restrictions but didn’t get this to work. A quick look at the Dovecot source code seems to suggest that the quota-status plugin is only checking the recipient address: https://github.com/dovecot/core/blob/master/src/plugins/quota/quota-status.c... https://github.com/dovecot/core/blob/master/src/plugins/quota/quota-status.c... and https://github.com/dovecot/core/blob/master/src/plugins/quota/quota-status.c... https://github.com/dovecot/core/blob/master/src/plugins/quota/quota-status.c....
I suspect it’s not possible to use the quota-status service to control outbound email but thought I’d ask to confirm. I’m wondering if there’s a different way to achieve this?
Thanks Peter