On 16 May 2018, at 20.16, forums@mehl-family.fr wrote:

I have comment the line...

But now I see other warning :

Warning: /etc/dovecot/conf.d/OLD-90-quota.conf line 39: Global setting mail_plugins won't change the setting inside an earlier filter at /etc/dovecot/conf.d/15-lda.conf line 13 (if this is intentional, avoid this warning by moving the global setting before /etc/dovecot/conf.d/15-lda.conf line 13)

AND... I see an error message :

Error: Couldn't load required plugin /usr/lib/dovecot/modules/lib11_imap_quota_plugin.so: Plugin quota must be loaded also (you must set: mail_plugins=$mail_plugins quota)

Load your global plugins first, in global config file and protocol specific plugins later in the config.

Sami