Dovecot don't erase mails from storage.

Hi,

I have a dovecot installation with a strange problem: all the mails stays in storage after deleted from users mailbox. If user logon after the mails are deleted, they don't receive them any more, but the m.## files aren’t deleted. This happens with pop3 (default for this installation) and/or imap.

The dovecot is installed along postfix with mysql and multi-domains support

Here's the dovecot conf ########################

dovecot -n # 2.1.7: /etc/dovecot/dovecot.conf # OS: Linux 2.6.32-042stab111.11 x86_64 Debian 7.9 auth_mechanisms = plain login first_valid_uid = 111 last_valid_uid = 111 lda_mailbox_autocreate = yes mail_debug = yes mail_gid = vmail mail_plugins = " quota" mail_privileged_group = vmail mail_uid = vmail namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = uid box msgid size quota = dict:User quota::file:%h/mail/dovecot-quota quota_rule = *:storage=500MB } postmaster_address = sysadmin@inside.pt protocols = " imap pop3" service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } } service lmtp { unix_listener /var/spool/postfix/private/dovecot-lmtp { group = postfix mode = 0660 user = postfix } } ssl_cert =

###############################

Here is an example of log file with debug

Oct 02 17:50:38 auth: Debug: auth client connected (pid=11621) Oct 02 17:50:38 auth: Debug: client in: AUTH 1 PLAIN service=pop3 secured session=Xiif9iEhmgBV80+u lip=xxx.xxx.xxx.xxx rip=xxx.xxx.xxx.xxx lport=995 rport=53914 resp=<hidden> Oct 02 17:50:38 auth-worker(11561): Debug: sql(carla.franjoso@xxxxxxx.xx,xxx.xxx.xxx.xxx): query: /* dovecot-sql.conf password_query */ SELECT '/var/vmail/xxxxxx.xx/carla.franjoso' AS userdb_home, 'mdbox:~/mail' AS userdb_mail, 111 AS userdb_uid, 114 AS userdb_gid, CONCAT('*:bytes=', CAST(m.quota AS CHAR)) AS userdb_quota_rule, CONCAT(m.local_part, '@', d.name) AS user, m.password AS password FROM mailboxes AS m LEFT JOIN domains AS d ON m.domain_id = d.id WHERE m.local_part = 'carla.franjoso' AND d.name = 'xxxxxxx.xx' AND m.is_active AND d.is_active Oct 02 17:50:38 auth: Debug: client out: OK 1 user=carla.franjoso@xxxxxx.xx Oct 02 17:50:38 auth: Debug: master in: REQUEST 3537633281 11621 1 41ef179d4a37a603ce38c43fab768f78 Oct 02 17:50:38 auth: Debug: prefetch(carla.franjoso@xxxxxx.xx,xxx.xxx.xxx.xxx,): success Oct 02 17:50:38 auth: Debug: master out: USER 3537633281 carla.franjoso@xxxxx.xx home=/var/vmail/xxxxxxxx/carla.franjoso mail=mdbox:~/mail uid=1 11 gid=114 quota_rule=*:bytes=104857600 Oct 02 17:50:38 pop3: Debug: Loading modules from directory: /usr/lib/dovecot/modules Oct 02 17:50:38 pop3: Debug: Module loaded: /usr/lib/dovecot/modules/lib10_quota_plugin.so Oct 02 17:50:38 pop3: Debug: Added userdb setting: mail=mdbox:~/mail Oct 02 17:50:38 pop3: Debug: Added userdb setting: plugin/quota_rule=*:bytes=104857600 Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: Effective uid=111, gid=114, home=/var/vmail/xxxxxxxx.xx/carla.franjoso Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: Quota root: name=User quota backend=dict args=:file:/var/vmail/xxxxxxxxx.xx/carla.franjoso/mail/dovecot-quota Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: Quota rule: root=User quota mailbox=* bytes=104857600 messages=0 Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: dict quota: user=carla.franjoso@xxxx.xx, uri=file:/var/vmail/xxxxxx,xx/carla.franjoso/mail/dovecot-quot a, noenforcing=0 Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes locatio n=mdbox:~/mail Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: fs: root=/var/vmail/ assis.pt/carla.franjoso/mail, index=, control=, inbox=, alt= Oct 02 17:50:38 pop3(carla.franjoso@xxxxx.xx): Debug: Namespace : Using permissions from /var/vmail/xxxxxxx.xx/carla.franjoso/mail: mode=0700 gid=-1

What is "gid=-1" at the end of the log?

Can anyone help?

Thanks Carlos Baptista