>По-моему, недостаточно информации для того, чтобы ответить на Ваш вопрос.
>relay=virtual показывает, что Cyrus-imap не получает почту, но что именно Вы хотите
>получить можно будет увидеть только из main.cf (в части, касающейся всех
>параметров с _transport), master.cf (упоминание cyrus) и, возможно, cyrus.conf.
main.cf:
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
mail_owner = postfix
myhostname = fedora.example.ru
mydomain = example.ru
myorigin = $mydomain
inet_interfaces = 10.10.0.245, 127.0.0.1
mydestination = $myhostname, localhost.$mydomain, localhost
unknown_local_recipient_reject_code = 450
mynetworks = 10.10.0.0/24, 127.0.0.0/8
biff = no
local_transport = virtual
local_recipient_maps = $virtual_mailbox_maps
message_size_limit = 10280000
mailbox_size_limit = 20480000
mailbox_transport = cyrus
virtual_uid_maps = static:1001
virtual_gid_maps = static:1001
virtual_recipient_maps = ldap:ldapsource
virtual_mailbox_size_limit = ldap:ldapquota
virtual_minimum_uid = 500
virtual_mailbox_base =/var/imap/home
virtual_result_attribute = mailbox
virtual_mailbox_maps = ldap:ldapsource
virtual_mailbox_domains = example.ru, mail.example.ruu
virtual_maildir_extended = yes
ldapquota_timeout = 10
ldapquota_server_host = localhost
ldapquota_search_base = ou=mailuser,dc=example,dc=com
ldapqouta_server_port = 389
ldapquota_query_filter = (&(mail=%s))
ldapquota_result_attribute = mailquota
ldapquota_bind = no
ldapquota_bind_dn = cn=admin,dc=example,dc=com
ldapquota_bind_pw = gfhjkm
ldapsource_timeout = 10
ldapsource_server_host = localhost
ldapsource_search_base = ou=mailuser,dc=example,dc=com
ldapsource_server_port = 389
ldapsource_query_filter = (&(mail=%s))
ldapsource_result_attribute = mailbox
ldapsource_bind = no
ldapsource_bind_dn = cn=admin,dc=example,dc=com
ldapsource_bind_pw = gfhjkm
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
smtpd_banner = Hi!!!!!
debug_peer_level = 3
debugger_command =
PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
xxgdb $daemon_directory/$process_name $process_id & sleep 5
delay_warning_time = 4
# sendmail_path = /usr/sbin/sendmail
newaliases_path = /usr/bin/newaliases