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Old 06-14-2010, 10:43 AM   #1
andrewggrant
LQ Newbie
 
Registered: May 2010
Posts: 9

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Unhappy How to force SMTP AUTH to restrict Sender Addresses (Postfix, OS X 10.6, OD)


Hello,

I have configured the default install of Postfix (version 2.5.5) on Apple OS X Server 10.6.3 (Darwin 10.3.0). Everything seems to run very well with the exception that once authenticated, a user can claim to be any valid email address on my network.

I currently require SASL Authentication for all senders and the system is referencing the User Name and Password stored within Open Directory.

I now have a desire to restrict senders to their email addresses listed within OpenDirectory. I want to make sure that the email address listed in OD is the only sending address a user can use based upon their SASL credentials.

I don't know how to reference the Open Directory as the DB to check for User Name and Email Address combinations (if that can even be done).

If it is not possible to access the OD data, can someone please explain, in very easy to understand terms and with examples, how to implement this feature (even if I have to create a hash file for every user on my network)?

So far, I have tried these items with no success:
smtp_sender_dependent_authentication = yes
smtpd_sender_restrictions =
permit_sasl_authenticated,
reject_non_fqdn_sender,
reject_sender_login_mismatch,
reject_authenticated_sender_login_mismatch,
reject_unauthenticated_sender_login_mismatch,
reject

Here is an output of my Postconf -n (only the changes I have made to the default config). For those interested in the full Postconf output, it is listed below this summary of changes.

Postconf -n (changes to default):
2bounce_notice_recipient = mail-notification
biff = no
bounce_notice_recipient = mail-notification
broken_sasl_auth_clients = yes
command_directory = /usr/sbin
config_directory = /etc/postfix
content_filter = smtp-amavis:[127.0.0.1]:10024
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
delay_notice_recipient = mail-notification
delay_warning_time = 1h
enable_server_options = yes
error_notice_recipient = mail-notification
header_checks = pcre:/etc/postfix/custom_header_checks
html_directory = /usr/share/doc/postfix/html
inet_interfaces = all
local_recipient_maps =
mail_owner = _postfix
mailbox_size_limit = 0
mailbox_transport = dovecot
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps_rbl_domains =
message_size_limit = 0
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = localtest.com
mydomain_fallback = localhost
myhostname = mail.localtest.com
mynetworks = 127.0.0.0/8,127.0.0.1/32,10.1.2.241
newaliases_path = /usr/bin/newaliases
notify_classes = policy, protocol, resource, software
queue_directory = /private/var/spool/postfix
readme_directory = /usr/share/doc/postfix
recipient_delimiter = +
relayhost = msg.localtest.com
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = _postdrop
smtp_sasl_auth_enable = no
smtp_sasl_password_maps =
smtpd_client_restrictions = permit_mynetworks permit_sasl_authenticated reject_rbl_client zen.spamhaus.org permit
smtpd_delay_reject = yes
smtpd_enforce_tls = no
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_sasl_authenticated, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit
smtpd_pw_server_security_options = cram-md5, gssapi
smtpd_recipient_restrictions = permit_sasl_authenticated check_recipient_access hash:/etc/postfix/classes/restricted_recipients_list check_sender_access hash:/etc/postfix/classes/restricted_senders_list reject_unauth_pipelining reject_non_fqdn_recipient reject_unknown_recipient_domain reject_unauth_destination check_policy_service unixrivate/policy permit
smtpd_restriction_classes = restricted_recipients_list, restricted_senders_list, mgmt_sender_access, everyone_sender_access, notify_sender_access, aeclerk_sender_access, send_only_list, internal_domains
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sender_restrictions = permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain, permit
smtpd_tls_CAfile = /etc/certificates/mail.localtest.com.A2124A801965D56ECA8EFA8240C82E7D9F4D73F0.chain.pem
smtpd_tls_cert_file = /etc/certificates/mail.localtest.com.A2124A801965D56ECA8EFA8240C82E7D9F4D73F0.cert.pem
smtpd_tls_exclude_ciphers = SSLv2, aNULL, ADH, eNULL
smtpd_tls_key_file = /etc/certificates/mail.localtest.com.A2124A801965D56ECA8EFA8240C82E7D9F4D73F0.key.pem
smtpd_use_pw_server = yes
smtpd_use_tls = yes
tls_random_source = dev:/dev/urandom
unknown_local_recipient_reject_code = 550
virtual_alias_maps =


Full Postconf Output:

2bounce_notice_recipient = mail-notification
access_map_reject_code = 554
address_verify_default_transport = $default_transport
address_verify_local_transport = $local_transport
address_verify_map =
address_verify_negative_cache = yes
address_verify_negative_expire_time = 3d
address_verify_negative_refresh_time = 3h
address_verify_poll_count = 3
address_verify_poll_delay = 3s
address_verify_positive_expire_time = 31d
address_verify_positive_refresh_time = 7d
address_verify_relay_transport = $relay_transport
address_verify_relayhost = $relayhost
address_verify_sender = $double_bounce_sender
address_verify_sender_dependent_relayhost_maps = $sender_dependent_relayhost_maps
address_verify_service_name = verify
address_verify_transport_maps = $transport_maps
address_verify_virtual_transport = $virtual_transport
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
allow_mail_to_commands = alias, forward
allow_mail_to_files = alias, forward
allow_min_user = no
allow_percent_hack = yes
allow_untrusted_routing = no
alternate_config_directories =
always_bcc =
anvil_rate_time_unit = 60s
anvil_status_update_time = 600s
append_at_myorigin = yes
append_dot_mydomain = yes
application_event_drain_time = 100s
authorized_flush_users = static:anyone
authorized_mailq_users = static:anyone
authorized_submit_users = static:anyone
backwards_bounce_logfile_compatibility = yes
berkeley_db_create_buffer_size = 16777216
berkeley_db_read_buffer_size = 131072
best_mx_transport =
biff = no
body_checks =
body_checks_size_limit = 51200
bounce_notice_recipient = mail-notification
bounce_queue_lifetime = 5d
bounce_service_name = bounce
bounce_size_limit = 50000
bounce_template_file =
broken_sasl_auth_clients = yes
canonical_classes = envelope_sender, envelope_recipient, header_sender, header_recipient
canonical_maps =
check_for_od_forward = yes
cleanup_service_name = cleanup
command_directory = /usr/sbin
command_execution_directory =
command_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
command_time_limit = 1000s
config_directory = /etc/postfix
connection_cache_protocol_timeout = 5s
connection_cache_service_name = scache
connection_cache_status_update_time = 600s
connection_cache_ttl_limit = 2s
content_filter = smtp-amavis:[127.0.0.1]:10024
cyrus_sasl_config_path =
daemon_directory = /usr/libexec/postfix
daemon_timeout = 18000s
data_directory = /var/lib/postfix
debug_peer_level = 2
debug_peer_list =
default_database_type = hash
default_delivery_slot_cost = 5
default_delivery_slot_discount = 50
default_delivery_slot_loan = 3
default_destination_concurrency_failed_cohort_limit = 1
default_destination_concurrency_limit = 20
default_destination_concurrency_negative_feedback = 1
default_destination_concurrency_positive_feedback = 1
default_destination_rate_delay = 0s
default_destination_recipient_limit = 50
default_extra_recipient_limit = 1000
default_minimum_delivery_slots = 3
default_privs = nobody
default_process_limit = 100
default_rbl_reply = $rbl_code Service unavailable; $rbl_class [$rbl_what] blocked using $rbl_domain${rbl_reason?; $rbl_reason}
default_recipient_limit = 20000
default_recipient_refill_delay = 5s
default_recipient_refill_limit = 100
default_transport = smtp
default_verp_delimiters = +=
defer_code = 450
defer_service_name = defer
defer_transports =
delay_logging_resolution_limit = 2
delay_notice_recipient = mail-notification
delay_warning_time = 1h
deliver_lock_attempts = 20
deliver_lock_delay = 1s
destination_concurrency_feedback_debug = no
detect_8bit_encoding_header = yes
disable_dns_lookups = no
disable_mime_input_processing = no
disable_mime_output_conversion = no
disable_verp_bounces = no
disable_vrfy_command = no
dont_remove = 0
double_bounce_sender = double-bounce
duplicate_filter_limit = 1000
empty_address_recipient = MAILER-DAEMON
empty_address_relayhost_maps_lookup_key = <>
enable_original_recipient = yes
enable_server_options = yes
error_notice_recipient = mail-notification
error_service_name = error
execution_directory_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
expand_owner_alias = no
export_environment = TZ MAIL_CONFIG LANG
fallback_transport =
fallback_transport_maps =
fast_flush_domains = $relay_domains
fast_flush_purge_time = 7d
fast_flush_refresh_time = 12h
fault_injection_code = 0
flush_service_name = flush
fork_attempts = 5
fork_delay = 1s
forward_expansion_filter = 1234567890!@%-_=+:,./abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
forward_path = $home/.forward${recipient_delimiter}${extension}, $home/.forward
frozen_delivered_to = yes
hash_queue_depth = 1
hash_queue_names = deferred, defer
header_address_token_limit = 10240
header_checks = pcre:/etc/postfix/custom_header_checks
header_size_limit = 102400
helpful_warnings = yes
home_mailbox =
hopcount_limit = 50
html_directory = /usr/share/doc/postfix/html
ignore_mx_lookup_error = no
import_environment = MAIL_CONFIG MAIL_DEBUG MAIL_LOGTAG TZ XAUTHORITY DISPLAY LANG=C
in_flow_delay = 1s
inet_interfaces = all
inet_protocols = ipv4
initial_destination_concurrency = 5
internal_mail_filter_classes =
invalid_hostname_reject_code = 501
ipc_idle = 5s
ipc_timeout = 3600s
ipc_ttl = 1000s
line_length_limit = 2048
lmtp_bind_address =
lmtp_bind_address6 =
lmtp_body_checks =
lmtp_cname_overrides_servername = no
lmtp_connect_timeout = 0s
lmtp_connection_cache_destinations =
lmtp_connection_cache_on_demand = yes
lmtp_connection_cache_time_limit = 2s
lmtp_connection_reuse_time_limit = 300s
lmtp_data_done_timeout = 600s
lmtp_data_init_timeout = 120s
lmtp_data_xfer_timeout = 180s
lmtp_defer_if_no_mx_address_found = no
lmtp_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
lmtp_destination_concurrency_limit = $default_destination_concurrency_limit
lmtp_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
lmtp_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
lmtp_destination_rate_delay = $default_destination_rate_delay
lmtp_destination_recipient_limit = $default_destination_recipient_limit
lmtp_discard_lhlo_keyword_address_maps =
lmtp_discard_lhlo_keywords =
lmtp_enforce_tls = no
lmtp_generic_maps =
lmtp_header_checks =
lmtp_host_lookup = dns
lmtp_initial_destination_concurrency = $initial_destination_concurrency
lmtp_lhlo_name = $myhostname
lmtp_lhlo_timeout = 300s
lmtp_line_length_limit = 990
lmtp_mail_timeout = 300s
lmtp_mime_header_checks =
lmtp_mx_address_limit = 5
lmtp_mx_session_limit = 2
lmtp_nested_header_checks =
lmtp_pix_workaround_delay_time = 10s
lmtp_pix_workaround_maps =
lmtp_pix_workaround_threshold_time = 500s
lmtp_pix_workarounds = disable_esmtp,delay_dotcrlf
lmtp_quit_timeout = 300s
lmtp_quote_rfc821_envelope = yes
lmtp_randomize_addresses = yes
lmtp_rcpt_timeout = 300s
lmtp_rset_timeout = 20s
lmtp_sasl_auth_cache_name =
lmtp_sasl_auth_cache_time = 90d
lmtp_sasl_auth_enable = no
lmtp_sasl_auth_soft_bounce = yes
lmtp_sasl_mechanism_filter =
lmtp_sasl_password_maps =
lmtp_sasl_path =
lmtp_sasl_security_options = noplaintext, noanonymous
lmtp_sasl_tls_security_options = $lmtp_sasl_security_options
lmtp_sasl_tls_verified_security_options = $lmtp_sasl_tls_security_options
lmtp_sasl_type = cyrus
lmtp_send_xforward_command = no
lmtp_sender_dependent_authentication = no
lmtp_skip_5xx_greeting = yes
lmtp_starttls_timeout = 300s
lmtp_tcp_port = 24
lmtp_tls_CAfile =
lmtp_tls_CApath =
lmtp_tls_cert_file =
lmtp_tls_dcert_file =
lmtp_tls_dkey_file = $lmtp_tls_dcert_file
lmtp_tls_enforce_peername = yes
lmtp_tls_exclude_ciphers =
lmtp_tls_fingerprint_cert_match =
lmtp_tls_fingerprint_digest = md5
lmtp_tls_key_file = $lmtp_tls_cert_file
lmtp_tls_loglevel = 0
lmtp_tls_mandatory_ciphers = medium
lmtp_tls_mandatory_exclude_ciphers =
lmtp_tls_mandatory_protocols = SSLv3, TLSv1
lmtp_tls_note_starttls_offer = no
lmtp_tls_per_site =
lmtp_tls_policy_maps =
lmtp_tls_scert_verifydepth = 9
lmtp_tls_secure_cert_match = nexthop
lmtp_tls_security_level =
lmtp_tls_session_cache_database =
lmtp_tls_session_cache_timeout = 3600s
lmtp_tls_verify_cert_match = hostname
lmtp_use_tls = no
lmtp_xforward_timeout = 300s
local_command_shell =
local_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
local_destination_concurrency_limit = 2
local_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
local_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
local_destination_rate_delay = $default_destination_rate_delay
local_destination_recipient_limit = 1
local_header_rewrite_clients = permit_inet_interfaces
local_initial_destination_concurrency = $initial_destination_concurrency
local_recipient_maps =
local_transport = local:$myhostname
luser_relay =
mail_name = Postfix
mail_owner = _postfix
mail_release_date = 20080902
mail_spool_directory = /var/mail
mail_version = 2.5.5
mailbox_command =
mailbox_command_maps =
mailbox_delivery_lock = flock, dotlock
mailbox_size_limit = 0
mailbox_transport = dovecot
mailbox_transport_maps =
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps_rbl_domains =
maps_rbl_reject_code = 554
masquerade_classes = envelope_sender, header_sender, header_recipient
masquerade_domains =
masquerade_exceptions =
max_idle = 100s
max_use = 100
maximal_backoff_time = 4000s
maximal_queue_lifetime = 5d
message_reject_characters =
message_size_limit = 0
message_strip_characters =
milter_command_timeout = 30s
milter_connect_macros = j {daemon_name} v
milter_connect_timeout = 30s
milter_content_timeout = 300s
milter_data_macros = i
milter_default_action = tempfail
milter_end_of_data_macros = i
milter_end_of_header_macros = i
milter_helo_macros = {tls_version} {cipher} {cipher_bits} {cert_subject} {cert_issuer}
milter_macro_daemon_name = $myhostname
milter_macro_v = $mail_name $mail_version
milter_mail_macros = i {auth_type} {auth_authen} {auth_author} {mail_addr}
milter_protocol = 2
milter_rcpt_macros = i {rcpt_addr}
milter_unknown_command_macros =
mime_boundary_length_limit = 2048
mime_header_checks = $header_checks
mime_nesting_limit = 100
minimal_backoff_time = 300s
multi_recipient_bounce_reject_code = 550
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain
mydomain = localtest.com
mydomain_fallback = localhost
myhostname = mail.localtest.com
mynetworks = 127.0.0.0/8,127.0.0.1/32,10.1.2.241
mynetworks_style = subnet
myorigin = $myhostname
nested_header_checks = $header_checks
newaliases_path = /usr/bin/newaliases
non_fqdn_reject_code = 504
non_smtpd_milters =
notify_classes = policy, protocol, resource, software
owner_request_special = yes
parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,rel ay_domains,smtpd_access_maps
permit_mx_backup_networks =
pickup_service_name = pickup
plaintext_reject_code = 450
prepend_delivered_header = command, file, forward
process_id_directory = pid
propagate_unmatched_extensions = canonical, virtual
proxy_interfaces =
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $sender_bcc_maps $recipient_bcc_maps $smtp_generic_maps $lmtp_generic_maps
proxy_write_maps = $smtp_sasl_auth_cache_name $lmtp_sasl_auth_cache_name
qmgr_clog_warn_time = 300s
qmgr_fudge_factor = 100
qmgr_message_active_limit = 20000
qmgr_message_recipient_limit = 20000
qmgr_message_recipient_minimum = 10
qmqpd_authorized_clients =
qmqpd_client_port_logging = no
qmqpd_error_delay = 1s
qmqpd_timeout = 300s
queue_directory = /private/var/spool/postfix
queue_file_attribute_count_limit = 100
queue_minfree = 0
queue_run_delay = 300s
queue_service_name = qmgr
rbl_reply_maps =
readme_directory = /usr/share/doc/postfix
receive_override_options =
recipient_bcc_maps =
recipient_canonical_classes = envelope_recipient, header_recipient
recipient_canonical_maps =
recipient_delimiter = +
reject_code = 554
relay_clientcerts =
relay_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
relay_destination_concurrency_limit = $default_destination_concurrency_limit
relay_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
relay_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
relay_destination_rate_delay = $default_destination_rate_delay
relay_destination_recipient_limit = $default_destination_recipient_limit
relay_domains = $mydestination
relay_domains_reject_code = 554
relay_initial_destination_concurrency = $initial_destination_concurrency
relay_recipient_maps =
relay_transport = relay
relayhost = msg.localtest.com
relocated_maps =
remote_header_rewrite_domain =
require_home_directory = no
resolve_dequoted_address = yes
resolve_null_domain = no
resolve_numeric_domain = no
rewrite_service_name = rewrite
sample_directory = /usr/share/doc/postfix/examples
send_cyrus_sasl_authzid = no
sender_bcc_maps =
sender_canonical_classes = envelope_sender, header_sender
sender_canonical_maps =
sender_dependent_relayhost_maps =
sendmail_path = /usr/sbin/sendmail
service_throttle_time = 60s
setgid_group = _postdrop
show_user_unknown_table_name = yes
showq_service_name = showq
smtp_always_send_ehlo = yes
smtp_bind_address =
smtp_bind_address6 =
smtp_body_checks =
smtp_cname_overrides_servername = no
smtp_connect_timeout = 30s
smtp_connection_cache_destinations =
smtp_connection_cache_on_demand = yes
smtp_connection_cache_time_limit = 2s
smtp_connection_reuse_time_limit = 300s
smtp_data_done_timeout = 600s
smtp_data_init_timeout = 120s
smtp_data_xfer_timeout = 180s
smtp_defer_if_no_mx_address_found = no
smtp_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
smtp_destination_concurrency_limit = $default_destination_concurrency_limit
smtp_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
smtp_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
smtp_destination_rate_delay = $default_destination_rate_delay
smtp_destination_recipient_limit = $default_destination_recipient_limit
smtp_discard_ehlo_keyword_address_maps =
smtp_discard_ehlo_keywords =
smtp_enforce_tls = no
smtp_fallback_relay = $fallback_relay
smtp_generic_maps =
smtp_header_checks =
smtp_helo_name = $myhostname
smtp_helo_timeout = 300s
smtp_host_lookup = dns
smtp_initial_destination_concurrency = $initial_destination_concurrency
smtp_line_length_limit = 990
smtp_mail_timeout = 300s
smtp_mime_header_checks =
smtp_mx_address_limit = 5
smtp_mx_session_limit = 2
smtp_nested_header_checks =
smtp_never_send_ehlo = no
smtp_pix_workaround_delay_time = 10s
smtp_pix_workaround_maps =
smtp_pix_workaround_threshold_time = 500s
smtp_pix_workarounds = disable_esmtp,delay_dotcrlf
smtp_quit_timeout = 300s
smtp_quote_rfc821_envelope = yes
smtp_randomize_addresses = yes
smtp_rcpt_timeout = 300s
smtp_rset_timeout = 20s
smtp_sasl_auth_cache_name =
smtp_sasl_auth_cache_time = 90d
smtp_sasl_auth_enable = no
smtp_sasl_auth_soft_bounce = yes
smtp_sasl_mechanism_filter =
smtp_sasl_password_maps =
smtp_sasl_path =
smtp_sasl_security_options = noplaintext, noanonymous
smtp_sasl_tls_security_options = $smtp_sasl_security_options
smtp_sasl_tls_verified_security_options = $smtp_sasl_tls_security_options
smtp_sasl_type = cyrus
smtp_send_xforward_command = no
smtp_sender_dependent_authentication = no
smtp_skip_5xx_greeting = yes
smtp_skip_quit_response = yes
smtp_starttls_timeout = 300s
smtp_tls_CAfile =
smtp_tls_CApath =
smtp_tls_cert_file =
smtp_tls_dcert_file =
smtp_tls_dkey_file = $smtp_tls_dcert_file
smtp_tls_enforce_peername = yes
smtp_tls_exclude_ciphers =
smtp_tls_fingerprint_cert_match =
smtp_tls_fingerprint_digest = md5
smtp_tls_key_file = $smtp_tls_cert_file
smtp_tls_loglevel = 0
smtp_tls_mandatory_ciphers = medium
smtp_tls_mandatory_exclude_ciphers =
smtp_tls_mandatory_protocols = SSLv3, TLSv1
smtp_tls_note_starttls_offer = no
smtp_tls_per_site =
smtp_tls_policy_maps =
smtp_tls_scert_verifydepth = 9
smtp_tls_secure_cert_match = nexthop, dot-nexthop
smtp_tls_security_level =
smtp_tls_session_cache_database =
smtp_tls_session_cache_timeout = 3600s
smtp_tls_verify_cert_match = hostname
smtp_use_tls = no
smtp_xforward_timeout = 300s
smtpd_authorized_verp_clients = $authorized_verp_clients
smtpd_authorized_xclient_hosts =
smtpd_authorized_xforward_hosts =
smtpd_banner = $myhostname ESMTP $mail_name
smtpd_client_connection_count_limit = 50
smtpd_client_connection_rate_limit = 0
smtpd_client_event_limit_exceptions = ${smtpd_client_connection_limit_exceptions:$mynetworks}
smtpd_client_message_rate_limit = 0
smtpd_client_new_tls_session_rate_limit = 0
smtpd_client_port_logging = no
smtpd_client_recipient_rate_limit = 0
smtpd_client_restrictions = permit_mynetworks permit_sasl_authenticated reject_rbl_client zen.spamhaus.org permit
smtpd_data_restrictions =
smtpd_delay_open_until_valid_rcpt = yes
smtpd_delay_reject = yes
smtpd_discard_ehlo_keyword_address_maps =
smtpd_discard_ehlo_keywords =
smtpd_end_of_data_restrictions =
smtpd_enforce_tls = no
smtpd_error_sleep_time = 1s
smtpd_etrn_restrictions =
smtpd_expansion_filter = \t\40!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~
smtpd_forbidden_commands = CONNECT GET POST
smtpd_hard_error_limit = 20
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_sasl_authenticated, reject_non_fqdn_helo_hostname, reject_invalid_helo_hostname, permit
smtpd_history_flush_threshold = 100
smtpd_junk_command_limit = 100
smtpd_milters =
smtpd_noop_commands =
smtpd_null_access_lookup_key = <>
smtpd_peername_lookup = yes
smtpd_policy_service_max_idle = 300s
smtpd_policy_service_max_ttl = 1000s
smtpd_policy_service_timeout = 100s
smtpd_proxy_ehlo = $myhostname
smtpd_proxy_filter =
smtpd_proxy_timeout = 100s
smtpd_pw_server_security_options = cram-md5, gssapi
smtpd_recipient_limit = 1000
smtpd_recipient_overshoot_limit = 1000
smtpd_recipient_restrictions = permit_sasl_authenticated check_recipient_access hash:/etc/postfix/classes/restricted_recipients_list check_sender_access hash:/etc/postfix/classes/restricted_senders_list reject_unauth_pipelining reject_non_fqdn_recipient reject_unknown_recipient_domain reject_unauth_destination check_policy_service unixrivate/policy permit
smtpd_reject_unlisted_recipient = yes
smtpd_reject_unlisted_sender = no
smtpd_restriction_classes = restricted_recipients_list, restricted_senders_list, mgmt_sender_access, everyone_sender_access, notify_sender_access, aeclerk_sender_access, send_only_list, internal_domains
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = no
smtpd_sasl_exceptions_networks =
smtpd_sasl_local_domain =
smtpd_sasl_path = smtpd
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
smtpd_sasl_type = cyrus
smtpd_sender_login_maps =
smtpd_sender_restrictions = permit_sasl_authenticated, reject_non_fqdn_sender, reject_unknown_sender_domain, permit
smtpd_soft_error_limit = 10
smtpd_starttls_timeout = 300s
smtpd_timeout = 300s
smtpd_tls_CAfile = /etc/certificates/mail.localtest.com.A2124A801965D56ECA8EFA8240C82E7D9F4D73F0.chain.pem
smtpd_tls_CApath =
smtpd_tls_always_issue_session_ids = yes
smtpd_tls_ask_ccert = no
smtpd_tls_auth_only = no
smtpd_tls_ccert_verifydepth = 9
smtpd_tls_cert_file = /etc/certificates/mail.localtest.com.A2124A801965D56ECA8EFA8240C82E7D9F4D73F0.cert.pem
smtpd_tls_dcert_file =
smtpd_tls_dh1024_param_file =
smtpd_tls_dh512_param_file =
smtpd_tls_dkey_file = $smtpd_tls_dcert_file
smtpd_tls_exclude_ciphers = SSLv2, aNULL, ADH, eNULL
smtpd_tls_fingerprint_digest = md5
smtpd_tls_key_file = /etc/certificates/mail.localtest.com.A2124A801965D56ECA8EFA8240C82E7D9F4D73F0.key.pem
smtpd_tls_loglevel = 0
smtpd_tls_mandatory_ciphers = medium
smtpd_tls_mandatory_exclude_ciphers =
smtpd_tls_mandatory_protocols = SSLv3, TLSv1
smtpd_tls_received_header = no
smtpd_tls_req_ccert = no
smtpd_tls_security_level =
smtpd_tls_session_cache_database =
smtpd_tls_session_cache_timeout = 3600s
smtpd_tls_wrappermode = no
smtpd_use_pw_server = yes
smtpd_use_tls = yes
soft_bounce = no
stale_lock_time = 500s
stress =
strict_7bit_headers = no
strict_8bitmime = no
strict_8bitmime_body = no
strict_mailbox_ownership = yes
strict_mime_encoding_domain = no
strict_rfc821_envelopes = no
sun_mailtool_compatibility = no
swap_bangpath = yes
syslog_facility = mail
syslog_name = postfix
tls_daemon_random_bytes = 32
tls_export_cipherlist = ALL:+RC4:@STRENGTH
tls_high_cipherlist = ALL:!EXPORT:!LOW:!MEDIUM:+RC4:@STRENGTH
tls_low_cipherlist = ALL:!EXPORT:+RC4:@STRENGTH
tls_medium_cipherlist = ALL:!EXPORT:!LOW:+RC4:@STRENGTH
tls_null_cipherlist = eNULL:!aNULL
tls_random_bytes = 32
tls_random_exchange_name = ${data_directory}/prng_exch
tls_random_prng_update_period = 3600s
tls_random_reseed_period = 3600s
tls_random_source = dev:/dev/urandom
trace_service_name = trace
transport_maps =
transport_retry_time = 60s
trigger_timeout = 10s
undisclosed_recipients_header = To: undisclosed-recipients:;
unknown_address_reject_code = 450
unknown_client_reject_code = 450
unknown_hostname_reject_code = 450
unknown_local_recipient_reject_code = 550
unknown_relay_recipient_reject_code = 550
unknown_virtual_alias_reject_code = 550
unknown_virtual_mailbox_reject_code = 550
unverified_recipient_reject_code = 450
unverified_sender_reject_code = 450
use_getpwnam_ext = yes
use_od_delivery_path = no
verp_delimiter_filter = -=+
virtual_alias_domains = $virtual_alias_maps
virtual_alias_expansion_limit = 1000
virtual_alias_maps =
virtual_alias_recursion_limit = 1000
virtual_destination_concurrency_failed_cohort_limit = $default_destination_concurrency_failed_cohort_limit
virtual_destination_concurrency_limit = $default_destination_concurrency_limit
virtual_destination_concurrency_negative_feedback = $default_destination_concurrency_negative_feedback
virtual_destination_concurrency_positive_feedback = $default_destination_concurrency_positive_feedback
virtual_destination_rate_delay = $default_destination_rate_delay
virtual_destination_recipient_limit = $default_destination_recipient_limit
virtual_gid_maps =
virtual_initial_destination_concurrency = $initial_destination_concurrency
virtual_mailbox_base =
virtual_mailbox_domains = $virtual_mailbox_maps
virtual_mailbox_limit = 51200000
virtual_mailbox_lock = fcntl, dotlock
virtual_mailbox_maps =
virtual_minimum_uid = 100
virtual_transport = virtual
virtual_uid_maps =
 
Old 06-15-2010, 12:36 AM   #2
spampig
Member
 
Registered: Feb 2010
Location: /Earth/UK/England/Hampshire
Distribution: Debian, Ubuntu, CentOS, Slackware
Posts: 262
Blog Entries: 2

Rep: Reputation: 56
I'm pretty sure that if I authenticate against any SMTP server, I can then proceed to send mail claiming to be from just about anybody. I would personally suggest that you sign up to the Postfix Users List (http://www.postfix.org/lists.html) and ask the question there. The author of the program may be able to give you some insight.
 
  


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