In order to follow the guidelines, here's the postconf -n output:
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
broken_sasl_auth_clients = yes
default_destination_concurrency_limit = 10
default_destination_recipient_limit = 100
default_process_limit = 50
inet_protocols = ipv4
insiders_bind = yes
insiders_bind_dn = cn=admin,dc=domain,dc=root
insiders_bind_pw = ******
insiders_query_filter =
(|(&(mail=%s)(externalmail=local_only))(&(uid=%u)(externalmail=local_only)))
insiders_result_attribute = externalmail
insiders_search_base = dc=root
insiders_server_host = ldap.domain.com
local_destination_concurrency_limit = 1
local_only = check_recipient_access hash:/etc/postfix/local_domains, reject
local_recipient_maps =
mailbox_command = /usr/bin/procmail -a "$EXTENSION"
mailbox_size_limit = 10000000000
message_size_limit = 20971520
mydestination = localhost
mydomain = domain.com
myhostname = mailbackend1
mynetworks = 127.0.0.0/8 192.168.2.0/24
myorigin = domain.com
readme_directory = no
recipient_delimiter = +
smtp_helo_name = mail.domain.com
smtp_host_lookup = dns, native
smtp_sasl_auth_enable = no
smtp_tls_security_level = may
smtpd_banner = mailbackend1
smtpd_hard_error_limit = ${stress?5}${stress:20}
smtpd_junk_command_limit = ${stress?1}${stress:100}
smtpd_recipient_restrictions = check_sender_access ldap:insiders,
check_client_access hash:/etc/postfix/frontends,
reject_unauth_destination, reject
smtpd_restriction_classes = local_only
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_soft_error_limit = ${stress?2}${stress:10}
smtpd_timeout = ${stress?60}${stress:300}
uiduser_bind = yes
uiduser_bind_dn = cn=admin,dc=domain,dc=root
uiduser_bind_pw = ******
uiduser_query_filter = (uid=%u)
uiduser_result_attribute = uidNumber
uiduser_search_base = dc=root
uiduser_server_host = ldap.domain.com
uiduser_server_port = 389
valiases_bind = yes
valiases_bind_dn = cn=admin,dc=domain,dc=root
valiases_bind_pw = ******
valiases_query_filter = (&(mail=%s)(!(mail=pendiente)))
valiases_result_attribute = uid
valiases_search_base = dc=root
valiases_server_host = ldap.domain.com
valiases_server_port = 389
valiases_version = 3
virtual_alias_maps = ldap:valiases
virtual_gid_maps = static:10000
virtual_mailbox_base = /home/vmail
virtual_mailbox_domains = domain.com
virtual_mailbox_maps = ldap:vmailbox
virtual_minimum_uid = 10000
virtual_transport = local
virtual_uid_maps = ldap:uiduser
vmailbox_bind = yes
vmailbox_bind_dn = cn=admin,dc=domain,dc=root
vmailbox_bind_pw = ******
vmailbox_query_filter = (uid=%u)
vmailbox_result_attribute = uid
vmailbox_result_format = %s/Maildir/
vmailbox_search_base = dc=root
vmailbox_server_host = ldap.domain.com
vmailbox_server_port = 389
On Wed, Apr 6, 2022 at 8:34 AM Tan Mientras <tanimient...@gmail.com> wrote:
> Hi
>
> We are migrating an old Debian 6 Postfix smarthost/relay server to a new
> one, just copying the configuration files and some other files to a fresh
> Ubuntu 20.04 system.
>
> For some reason, in the new environment, *mail is being delivered to
> /var/mail/user instead of Maildir (/home/vmail/user/Maildir).*(While
> debian 6 is working correctly)
> Any suggestion or fix for the config file would be much appreciated.
>
> Here's the main.cf:
> myorigin = domain.com
> myhostname= mailbackend1
> mydomain = domain.com
> smtpd_banner = mailbackend1
>
> biff = no
>
> # appending .domain is the MUA's job.
> append_dot_mydomain = no
>
> # Uncomment the next line to generate "delayed mail" warnings
> #delay_warning_time = 4h
>
> #TLS parameters
> smtp_tls_security_level = may
> #smtp_tls_wrappermode = yes
>
> inet_protocols = ipv4
>
> readme_directory = no
> smtp_helo_name = mail.domain.com
> smtp_host_lookup = dns, native
> # smtp_bind_address = 192.168.2.111
>
> alias_maps = hash:/etc/aliases
> alias_database = hash:/etc/aliases
>
> virtual_alias_maps = ldap:valiases
> valiases_server_host = ldap.domain.com
> valiases_server_port = 389
> valiases_bind = yes
> valiases_bind_dn = cn=admin,dc=domain,dc=root
> valiases_bind_pw = ******
> valiases_search_base = dc=root
> valiases_query_filter = (&(mail=%s)(!(mail=pendiente)))
> valiases_result_attribute = uid
> valiases_version = 3
>
> ##virtual_mailbox_domains = domain.es, domain.com
> virtual_mailbox_domains = domain.com
> virtual_mailbox_base = /home/vmail
>
> virtual_transport = local
> ##mailbox_transport = local
>
> # local_transport =
> mailbox_command = /usr/bin/procmail -a "$EXTENSION"
> #mailbox_command = /usr/bin/ionice -c 2 -n 7 /usr/bin/procmail -a
> "$EXTENSION"
>
>
> virtual_minimum_uid = 10000
> virtual_uid_maps = ldap:uiduser
> # virtual_uid_maps = static:10000
> virtual_gid_maps = static:10000
> # maildrop_destination_recipient_limit = 1
> # maildrop_destination_concurrency_limit = 2
> virtual_mailbox_maps = ldap:vmailbox
>
> # Cuotas
> #limite_server_host = localhost
> #limite_server_port = 389
> #limite_bind = yes
> #limite_bind_dn = cn=admin,dc=domain,dc=root
> #limite_bind_pw = ******
> #limite_search_base = dc=root
> #limite_query_filter = (uid=%u)
> #limite_result_attribute = quota
>
> #virtual_mailbox_limit_maps = ldap:limite
> #virtual_mailbox_limit_inbox = no
> #virtual_create_maildirsize = yes
> #virtual_maildir_extended = yes
> #virtual_mailbox_limit_override = yes
> #virtual_maildir_limit_message = "Quota exceeded."
> #virtual_overquota_bounce = yes
>
>
>
> vmailbox_server_host = ldap.domain.com
> vmailbox_server_port = 389
> vmailbox_bind = yes
> vmailbox_bind_dn = cn=admin,dc=domain,dc=root
> vmailbox_bind_pw = ******
> vmailbox_search_base = dc=root
> vmailbox_query_filter = (uid=%u)
> vmailbox_result_attribute = uid
> vmailbox_result_format = %s/Maildir/
>
> uiduser_server_host = ldap.domain.com
> uiduser_server_port = 389
> uiduser_bind = yes
> uiduser_bind_dn = cn=admin,dc=domain,dc=root
> uiduser_bind_pw = ******
> uiduser_search_base = dc=root
> uiduser_query_filter = (uid=%u)
> uiduser_result_attribute = uidNumber
>
>
> #procmail
> #local_recipient_maps = $virtual_mailbox_maps unix:passwd.byname
> $alias_maps
> local_recipient_maps =
>
> local_destination_concurrency_limit = 1
> default_destination_concurrency_limit = 10
> default_destination_recipient_limit = 100
>
> # Tunning
> default_process_limit = 50
> #local_destination_rate_limit= 2s
> #local_destination_concurrency_limit = 1
> #local_destination_recipient_limit = 5
>
>
> smtpd_timeout = ${stress?60}${stress:300}
> smtpd_hard_error_limit = ${stress?5}${stress:20}
> smtpd_junk_command_limit = ${stress?1}${stress:100}
> # smtpd_client_event_limit_exceptions = 192.168.2.0/24
> smtpd_soft_error_limit = ${stress?2}${stress:10}
>
>
> message_size_limit = 20971520
> mailbox_size_limit = 10000000000
> recipient_delimiter = +
> append_dot_mydomain = no
> biff = no
>
>
> mynetworks = 127.0.0.0/8 192.168.2.0/24
>
> mydestination = localhost
>
>
> insiders_server_host = ldap.domain.com
> insiders_search_base = dc=root
> insiders_query_filter =
> (|(&(mail=%s)(externalmail=local_only))(&(uid=%u)(externalmail=local_only)))
> insiders_result_attribute = externalmail
> insiders_bind = yes
> insiders_bind_dn = cn=admin,dc=domain,dc=root
> insiders_bind_pw = ******
>
>
> # auth
> smtp_sasl_auth_enable = no
>
> smtpd_sasl_auth_enable = yes
> broken_sasl_auth_clients = yes
> smtpd_sasl_security_options = noanonymous
>
> smtpd_recipient_restrictions =
> check_sender_access ldap:insiders,
> check_client_access hash:/etc/postfix/frontends,
> reject_unauth_destination,
> reject
>
>
> smtpd_restriction_classes = local_only
> local_only = check_recipient_access hash:/etc/postfix/local_domains, reject
>
>
>
> link:
> https://serverfault.com/questions/1097754/mail-is-being-delivered-to-var-mail-user-instead-of-maildir
>
