Hello,
We are on Dovecot 2.3.18.
Some users are occasionally complaining that all mail vanishes from their
inbox.
However, we cannot find any indication of deletions or expunge in the log.
One explanation could be that mail files are deleted externally (at the file
system level), but I can't imagine what could cause such deletions.
How would you suggest us to troubleshoot this further?
We could enable "mail_debug = yes", but this would flood the logs and cause
performance drop, and the issue is happening rarely.
Any other ideas to troubleshoot these cases in the past (through logs) or
monitor (whatever) for the future?
(The config is listed at the end.)
Thanks in advance.
Best regards,
Nick
The config follows:
=======================================================================
protocols = imap pop3 sieve lmtp
login_greeting = Dovecot OUR ORG
log_path = /var/log/dove.log
mail_location = maildir:~/Maildir/
mail_gid = 500
mail_uid = 500
auth_mechanisms = plain login
auth_username_format = %Ln
auth_verbose = no
auth_debug = no
mail_debug = no
disable_plaintext_auth = no
mail_plugins = quota mail_log notify
protocol imap {
imap_client_workarounds = "delay-newmail"
mail_plugins = quota imap_quota mail_log notify
mail_max_userip_connections = 400
namespace inbox {
mailbox Trash {
autoexpunge = 15d
}
}
}
protocol pop3 {
mail_max_userip_connections = 3
mail_plugins = quota notify
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
pop3_uidl_format = %08Xu%08Xv
namespace inbox {
mailbox Trash {
autoexpunge = 15d
}
}
}
protocol lda {
auth_socket_path = /var/run/dovecot/auth-master
mail_plugins = quota notify sieve
postmaster_address = [email protected]
sendmail_path = /usr/lib/sendmail
}
protocol lmtp {
auth_socket_path = /var/run/dovecot/auth-master
postmaster_address = [email protected]
mail_plugins = quota notify sieve
sendmail_path = /usr/lib/sendmail
}
protocol sieve {
managesieve_max_line_length = 65536
mail_max_userip_connections = 10
managesieve_logout_format = bytes=%i/%o
managesieve_max_compile_errors = 10
}
userdb {
args = /etc/dovecot/dovecot-usrdb-ldap.conf
driver = ldap
}
passdb {
args = /etc/dovecot/dovecot-passdb-ldap.conf
driver = ldap
}
plugin {
mail_log_events = delete undelete expunge copy mailbox_delete
mailbox_rename flag_change save mailbox_create
mail_log_fields = uid box msgid size flags vsize from subject
quota = maildir:User quota
quota_rule = *:storage=15G
quota_rule2 = Trash:storage=+3%%
quota_warning = storage=75%% quota-warning 75 %u
quota_warning2 = storage=90%% quota-warning 90 %u
# Used by both the Sieve plugin and the ManageSieve protocol
sieve = file:~/sieve;active=~/.dovecot.sieve
sieve_max_script_size = 0
sieve_max_actions = 0
sieve_max_redirects = 2
}
service quota-warning {
executable = script /opt/mail1.sh
user = vmail
unix_listener quota-warning {
user = vmail
}
}
service auth {
unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0660
user = postfix
}
unix_listener auth-master {
group = vmail
mode = 0660
user = vmail
}
user = root
}
service imap-login {
service_count = 100
vsz_limit = 64 M
process_limit = 500
}
service pop3-login {
service_count = 100
vsz_limit = 64 M
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
service_count = 100
process_min_avail = 0
vsz_limit = 64M
}
service managesieve {
process_limit = 1024
}
service imap {
executable = imap postlogin
process_limit = 2048
}
service pop3 {
executable = pop3 postlogin
}
service postlogin {
executable = script-login -d rawlog
unix_listener postlogin {
}
}
service lmtp {
unix_listener /var/spool/postfix/private/dovecot-lmtp {
group = postfix
mode = 0600
user = postfix
}
}
ssl = yes
ssl_cert = </etc/pki/tls/certs/servercert.crt
ssl_key = </etc/pki/tls/private/serverkey.key
namespace inbox {
separator = .
prefix =
inbox = yes
mailbox Drafts {
special_use = \Drafts
auto = subscribe
}
mailbox Junk {
special_use = \Junk
auto = subscribe
}
mailbox Trash {
special_use = \Trash
auto = subscribe
}
mailbox Sent {
special_use = \Sent
auto = subscribe
}
}
=======================================================================
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