Hi folks,

Firstly, the first:

dovecot --version 2.2.10

dovecot -n # 2.2.10: /etc/dovecot/dovecot.conf # OS: Linux 3.10.0-514.16.1.el7.x86_64 x86_64 CentOS Linux release 7.3.1611 (Core) auth_debug = yes auth_krb5_keytab = /var/lib/dovecot/krb5.keytab auth_master_user_separator = * auth_mechanisms = plain login gssapi auth_verbose = yes debug_log_path = /dev/null default_process_limit = 400 disable_plaintext_auth = no first_valid_uid = 988 imapc_features = rfc822.size fetch-headers imapc_host = mail.example-aid.com imapc_master_user = osstand imapc_password = secret imapc_ssl = starttls imapc_ssl_verify = no imapc_user = %u import_environment = TZ KRB5CCNAME last_valid_uid = 988 lmtp_save_to_detail_mailbox = yes mail_gid = vmail mail_location = maildir:~/Maildir mail_plugins = " acl listescape fts fts_lucene" mail_prefetch_count = 20 mail_shared_explicit_inbox = yes mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave imapflags mbox_write_locks = fcntl namespace PUBLIC { list = children location = maildir:/var/lib/nethserver/vmail/vmail/Maildir:INDEXPVT=~/Maildir/public prefix = Public/ separator = / subscriptions = no type = public } namespace ROOT { inbox = yes location = mailbox Drafts { auto = no special_use = \Drafts } mailbox Sent { auto = no special_use = \Sent } mailbox "Sent Messages" { auto = no special_use = \Sent } mailbox Trash { auto = no special_use = \Trash } prefix = separator = / subscriptions = yes type = private } namespace SHARED_USERS { disabled = no list = children location = maildir:/var/lib/nethserver/vmail/%%u/Maildir:INDEXPVT=~/Maildir/shared/%%u prefix = Shared/%%n@example.local/ separator = / subscriptions = no type = shared } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes } passdb { args = dovecot-master driver = pam master = yes } passdb { args = /etc/dovecot/deny.passwd deny = yes driver = passwd-file } passdb { args = max_requests=100 failure_show_msg=yes blocking=yes driver = pam } plugin { acl = vfile acl_shared_dict = file:/var/lib/nethserver/vmail/shared-mailboxes.db antispam_backend = MAILTRAIN antispam_mail_notspam = ham antispam_mail_sendmail = /usr/libexec/nethserver/spam-training.sh antispam_mail_sendmail_args = %u antispam_mail_spam = spam antispam_spam = Junk antispam_trash = Trash fts = lucene fts_lucene = whitespace_chars=@. sieve_after = /var/lib/nethserver/sieve-scripts/after.sieve sieve_before = /var/lib/nethserver/sieve-scripts/before.sieve sieve_extensions = +imapflags } protocols = imap lmtp sieve pop3 service anvil { client_limit = 1603 } service auth { client_limit = 2000 unix_listener /var/spool/postfix/private/smtpauth { group = postfix mode = 0660 user = postfix } unix_listener auth-userdb { group = vmail mode = 0660 } } service dict { unix_listener dict { mode = 0600 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 } unix_listener imap-ipc { group = root mode = 0600 user = $default_internal_user } } service imap-postlogin { executable = script-login /usr/libexec/nethserver/dovecot-postlogin user = $default_internal_user } service imap { executable = imap imap-postlogin } service lmtp { client_limit = 1 unix_listener lmtp { group = vmail mode = 0660 user = vmail } user = vmail } service managesieve { executable = managesieve sieve-postlogin } service pop3-postlogin { executable = script-login /usr/libexec/nethserver/dovecot-postlogin user = $default_internal_user } service pop3 { executable = pop3 pop3-postlogin } service sieve-postlogin { executable = script-login /usr/libexec/nethserver/dovecot-postlogin user = $default_internal_user } ssl_cert =

When I try to import a mailbox from an Exchange server, this is the output:

time dsync -D -v backup -R -u sergio.zuniga@example.local imapc: |& tee /tmp/errors2

doveadm(root): Debug: Loading modules from directory: /usr/lib64/dovecot doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib01_acl_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib20_fts_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib20_listescape_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/lib21_fts_lucene_plugin.so doveadm(root): Debug: Loading modules from directory: /usr/lib64/dovecot/doveadm doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_acl_plugin.so doveadm(root): Debug: Skipping module doveadm_expire_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_expire_plugin.so: undefined symbol: expire_set_deinit (this is usually intentional, so just ignore this message) doveadm(root): Debug: Skipping module doveadm_quota_plugin, because dlopen() failed: /usr/lib64/dovecot/doveadm/lib10_doveadm_quota_plugin.so: undefined symbol: quota_user_module (this is usually intentional, so just ignore this message) doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib10_doveadm_sieve_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_lucene_plugin.so doveadm(root): Debug: Module loaded: /usr/lib64/dovecot/doveadm/lib20_doveadm_fts_plugin.so doveadm(sergio.zuniga@example.local): Debug: Effective uid=988, gid=985, home=/var/lib/nethserver/vmail/sergio.zuniga@example.local doveadm(sergio.zuniga@example.local): Debug: Namespace ROOT: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:~/Maildir doveadm(sergio.zuniga@example.local): Debug: maildir++: root=/var/lib/nethserver/vmail/sergio.zuniga@example.local/Maildir, index=, indexpvt=, control=, inbox=/var/lib/nethserver/vmail/sergio.zuniga@example.local/Maildir, alt= doveadm(sergio.zuniga@example.local): Debug: acl: initializing backend with data: vfile doveadm(sergio.zuniga@example.local): Debug: acl: acl username = sergio.zuniga@example.local doveadm(sergio.zuniga@example.local): Debug: acl: owner = 1 doveadm(sergio.zuniga@example.local): Debug: acl vfile: Global ACL directory: (none) doveadm(sergio.zuniga@example.local): Debug: Namespace SHARED_USERS: type=shared, prefix=Shared/%n@example.local/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/var/lib/nethserver/vmail/%u/Maildir:INDEXPVT=~/Maildir/shared/%u doveadm(sergio.zuniga@example.local): Debug: shared: root=/var/run/dovecot, index=, indexpvt=, control=, inbox=, alt= doveadm(sergio.zuniga@example.local): Debug: fts: Indexes disabled for namespace 'Shared/%n@example.local/' doveadm(sergio.zuniga@example.local): Debug: acl: initializing backend with data: vfile doveadm(sergio.zuniga@example.local): Debug: acl: acl username = sergio.zuniga@example.local doveadm(sergio.zuniga@example.local): Debug: acl: owner = 0 doveadm(sergio.zuniga@example.local): Debug: acl vfile: Global ACL directory: (none) doveadm(sergio.zuniga@example.local): Debug: Namespace PUBLIC: type=public, prefix=Public/, sep=/, inbox=no, hidden=no, list=children, subscriptions=no location=maildir:/var/lib/nethserver/vmail/vmail/Maildir:INDEXPVT=~/Maildir/public doveadm(sergio.zuniga@example.local): Debug: maildir++: root=/var/lib/nethserver/vmail/vmail/Maildir, index=, indexpvt=/var/lib/nethserver/vmail/sergio.zuniga@example.local/Maildir/public, control=, inbox=, alt= doveadm(sergio.zuniga@example.local): Debug: acl: initializing backend with data: vfile doveadm(sergio.zuniga@example.local): Debug: acl: acl username = sergio.zuniga@example.local doveadm(sergio.zuniga@example.local): Debug: acl: owner = 0 doveadm(sergio.zuniga@example.local): Debug: acl vfile: Global ACL directory: (none) doveadm(sergio.zuniga@example.local): Debug: acl vfile: file /var/lib/nethserver/vmail/sergio.zuniga@example.local/Maildir/dovecot-acl not found doveadm(sergio.zuniga@example.local): Debug: acl vfile: file /var/lib/nethserver/vmail/sergio.zuniga@example.local/Maildir/.Sent/dovecot-acl not found doveadm(sergio.zuniga@example.local): Debug: Namespace : Using permissions from /var/lib/nethserver/vmail/sergio.zuniga@example.local/Maildir: mode=0700 gid=default dsync(sergio.zuniga@example.local): Debug: Effective uid=988, gid=985, home=/var/lib/nethserver/vmail/sergio.zuniga@example.local dsync(sergio.zuniga@example.local): Debug: Namespace ROOT: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=imapc: dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Looking up IP address dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Connecting to 192.168.50.1:143 dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Server capabilities: IMAP4 IMAP4rev1 LOGINDISABLED STARTTLS IDLE NAMESPACE LITERAL+ dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Starting SSL handshake dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): SSL handshake successful, ignoring invalid certificate: SSL certificate not received dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Server capabilities: IMAP4 IMAP4rev1 AUTH=GSSAPI AUTH=PLAIN IDLE NAMESPACE LITERAL+ dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Authenticating as neth.stand for user sergio.zuniga@example.local dsync(sergio.zuniga@example.local): Error: imapc(mail.example.com:143): Authentication failed: AUTHENTICATE failed. dsync(sergio.zuniga@example.local): Debug: imapc(mail.example.com:143): Disconnected dsync(sergio.zuniga@example.local): Error: imapc: Command failed: Disconnected from server dsync(sergio.zuniga@example.local): Error: user sergio.zuniga@example.local: Initialization failed: Namespace '': Mailbox list driver imapc: Failed to access imapc backend

Also, mailllog has a lot of lines as of:

dovecot: auth: passwd-file(john.doe@infoestructura.local,127.0.0.1,): unknown user

Please could you help to know where is the error?

Thanks in advance!!

--

Sergio Belkin LPIC-2 Certified - http://www.lpi.org