In order to deal with case-sensitive issues, I am thinking to use the variable %L (adding it to my current configs --as suggested before by other users in this list) in the configuration files in this way:

In Dovecot.conf: mail_location = maildir:/vmail/%Ld/%Ln/Maildir:INDEX=/indexes/%Ld/%Ln auth default: username_format: %Lu passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: static args: uid=5000 gid=5000 home=/vmail/%Ld/%Ln allow_all_users=yes

In dovecot-sql.conf:

password_query = select concat(virtual_users.user, '@', virtual_domains.name) AS user, virtual_users.password as password
from virtual_users LEFT JOIN virtual_domains ON virtual_users.domain_id=virtual_domains.id
where virtual_users.user='%Ln' and virtual_domains.name='%Ld' and virtual_users.status = 1 and virtual_domains.status = 1;

user_query = SELECT 5000 AS uid,5000 AS gid,'/vmail/%Ld/%Ln' as home,
concat('*:storage= ', virtual_users.quota_kb) AS quota_rule
from virtual_users LEFT JOIN virtual_domains ON virtual_users.domain_id=virtual_domains.id
where virtual_users.user='%Ln' and virtual_domains.name='%Ld'

Is this the correct way of assuring lowercase use all over the place? Can I use the variable %L in where sql statements?

Regards,

Mario Antonio