Hello,
We have one user who is complaining that he has lost mails from 3 imap folders, administered through squirrelmail.
The folders suddenly appeared unregistered, and once manually registered they were empty.
Has anyone observed something like this?
We are running two servers (as VMs) with Dovecot v2.2.18, synced (two-way) using dsync. The configurations follow.
Can you please help me understand what may have gone wrong?
Can I try to find actions regarding these folders in the logs? What should I search for?
Could this be an issue involving dsync? How can I trace back dsync activity in detail?
Server configs follow (I have only altered the real domain name and the login greeting.)
Thanks in advance, Nick
SERVER 1
protocols = imap pop3
login_greeting = Hello World!
mail_location = maildir:~/Maildir/ mail_gid = 500 mail_uid = 500
auth_mechanisms = plain login auth_username_format = %Lu
auth_verbose = yes auth_debug = no mail_debug = no
disable_plaintext_auth = no
mail_plugins = quota notify replication
protocol imap { imap_client_workarounds = "delay-newmail" mail_plugins = quota imap_quota notify replication }
protocol pop3 { mail_max_userip_connections = 3 mail_plugins = quota notify replication pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv }
protocol lda { auth_socket_path = /var/run/dovecot/auth-master info_log_path = log_path = mail_plugins = quota notify replication postmaster_address = sysadmin@example.com sendmail_path = /usr/lib/sendmail }
userdb { args = /etc/dovecot/dovecot-usrdb-ldap.conf driver = ldap }
passdb { args = /etc/dovecot/dovecot-passdb-ldap.conf driver = ldap }
dsync_remote_cmd = ssh -l root vmail1.example.com doveadm dsync-server -u%u replication_dsync_parameters = -d -N -l 30 -U
plugin { mail_replica = remote:vmail@vmail1.example.com }
plugin { quota = maildir:User quota quota_rule = *:storage=5G quota_rule2 = Trash:storage=+3%% quota_warning = storage=75%% quota-warning 75 %u quota_warning2 = storage=90%% quota-warning 90 %u }
service quota-warning { executable = script /opt/mail1.sh user = vmail unix_listener quota-warning { user = vmail } }
service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } }
service replicator { unix_listener replicator-doveadm { mode = 0600 } }
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 = 1 vsz_limit = 64 M }
service pop3-login { service_count = 1 vsz_limit = 64 M }
service replicator { process_min_avail = 1 }
service imap { executable = imap postlogin } service pop3 { executable = pop3 postlogin }
service postlogin { executable = script-login -d rawlog unix_listener postlogin { } }
ssl_ca =
ssl_protocols = !SSLv2 !SSLv3
syslog_facility = local1
SERVER 2
protocols = imap pop3
login_greeting = Hello World!
mail_location = maildir:~/Maildir/ mail_gid = 5000 mail_uid = 5000
auth_mechanisms = plain login auth_username_format = %Lu auth_verbose = yes disable_plaintext_auth = no
mail_plugins = quota notify replication
protocol imap { imap_client_workarounds = "delay-newmail " mail_plugins = quota imap_quota notify replication }
protocol pop3 { mail_max_userip_connections = 3 mail_plugins = quota notify replication pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv }
protocol lda { auth_socket_path = /var/run/dovecot/auth-master info_log_path = log_path = mail_plugins = quota notify replication postmaster_address = sysadmin@example.com sendmail_path = /usr/lib/sendmail }
userdb { args = /etc/dovecot/dovecot-usrdb-ldap.conf driver = ldap }
passdb { args = /etc/dovecot/dovecot-passdb-ldap.conf driver = ldap }
dsync_remote_cmd = ssh -l root vmail.example.com doveadm dsync-server -u%u replication_dsync_parameters = -d -N -l 30 -U
plugin { mail_replica = remote:vmail@vmail.example.com }
plugin { quota = maildir:User quota quota_rule = *:storage=5G quota_rule2 = Trash:storage=+3%% quota_warning = storage=75%% quota-warning 75 %u quota_warning2 = storage=90%% quota-warning 90 %u }
service quota-warning { executable = script /opt/mail1.sh user = vmail unix_listener quota-warning { user = vmail } }
service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } }
service replicator { unix_listener replicator-doveadm { mode = 0600 } }
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 = 1 vsz_limit = 64 M }
service pop3-login { service_count = 1 vsz_limit = 64 M }
service replicator { process_min_avail = 1 }
ssl_ca =
syslog_facility = local1
ssl_protocols = !SSLv2 !SSLv3