https://doc.dovecot.org/configuration_manual/authentication/dict/?highlight=default_pass_scheme
This file is commonly accessed via passdb {} or userdb {} section in
auth.d/auth-dict.conf.ext
dovecot_defaults_dict_auth:
# uri: ""
default_pass_scheme: MD5
iterate_prefix: userdb/
# iterate_disable: false
dict_keys:
- passwd:
key: passdb/%u
format: json
- userdb:
key: userdb/%u
format: json
- quota:
key: userdb/%u/quota
default_value: 100M
passdb_objects:
- passdb
passdb_fields: {}
userdb_objects:
- userdb
userdb_fields:
quota_rule: "*:storage=%{dict:quota}"
mail: "maildir:%{dict:userdb.home}/Maildir"