Hello, At the first, sorry for my englishJ I have a problem with dovecot quota since i migrated from courier. Dovecot does not update the Maildirsize after expunge, and the user running out of his quota very quickly. I checked, the file is deleted from the filesystem. If i delete the Maildirsize file, dovecot regenerate it with the correct datas when a new mail arrive. Also tried to set mail_debug=yes, but it doesnt show anything in the log, when delete mails. Im using NFS as homedirs, i tried to turn off the releated options in configuration, but didnt help. Has anyone any idea how to fix this issue? Thank you! Here is the output of dovecot -n: # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.6 nfs auth_mechanisms = plain login default_client_limit = 10000 default_process_limit = 1000 dict { quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no mail_fsync = always mail_location = maildir:/home/vmail/%d/%n mail_nfs_index = yes mail_nfs_storage = yes mmap_disable = yes namespace inbox { inbox = yes location mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Spam { auto = subscribe special_use = \Junk } mailbox Trash { auto = subscribe special_use = \Trash } prefix = INBOX. separator = . type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql }plugin { quota = maildir:User quota sieve = /home/vmail/default.sieve sieve_default = /home/vmail/default.sieve sieve_dir = ~/sieve sieve_extensions = +editheader sieve_global_dir = /var/lib/dovecot/sieve } protocols = " imap pop3" service auth-worker { user = vmail } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { mode = 0600 user = vmail } user = $default_internal_user } service dict { unix_listener dict { group = vmail mode = 0600 user = vmail } } ssl_cert = </etc/postfix/domain.tld.crt ssl_key = </etc/postfix/domain.tld.key userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lda { mail_plugins = " quota sieve" } protocol imap { mail_max_userip_connections = 20 } protocol pop3 { mail_max_userip_connections = 20 } cat dovecot-sql.conf.ext driver = mysql connect = host=xx user=mailadmin password=xx dbname=xx default_pass_scheme = SHA512-CRYPT password_query = \ SELECT email as user, password \ FROM email_accounts WHERE email = '%u' AND smtp > IF('%s'='smtp', 0, -1) user_query = \ SELECT CONCAT('/home/vmail/', '%d', '/', '%n') as home, 5000 as uid, 5000 as gid, CONCAT('*:bytes=', quota) as quota_rule \ FROM email_accounts WHERE email = '%u' # If you wish to avoid two SQL lookups (passdb + userdb), you can use # userdb prefetch instead of userdb sql in dovecot.conf. In that case you'll # also have to return userdb fields in password_query prefixed with "userdb_" # string. For example: #password_query = \ # SELECT userid AS user, password, \ # home AS userdb_home, uid AS userdb_uid, gid AS userdb_gid \ # FROM users WHERE userid = '%u' # Query to get a list of all usernames. #iterate_query = SELECT username AS user FROM users