Messages lost from imap folders

[Nikolaos Milas]

Anyone? No suggestions whatsoever?

Nick

On 16/9/2015 2:52 μμ, Nikolaos Milas wrote:

> 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 at 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 at 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 = </etc/pki/tls/certs/chain-1552.pem
> ssl_cert = </etc/pki/tls/certs/cert-1552.pem
> ssl_key = </etc/pki/tls/private/key-1552.pem
>
> 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 at 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 at 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 = </etc/pki/tls/certs/chain-2228.pem
> ssl_cert = </etc/pki/tls/certs/cert-2228.pem
> ssl_key = </etc/pki/tls/private/key-2228.pem
>
> syslog_facility = local1
>
> ssl_protocols = !SSLv2 !SSLv3
>
> ----------------------------------------------------------------------------- 
>
>