從本地開發伺服器發送電子郵件

我正在進行網站開發，需要測試一些電子郵件內容（僅向我發送電子郵件以註冊使用者，我為此目的使用我的個人電子郵件地址）。我不是專家，所以我只安裝了 Postfix，它沒有配置，我不知道該怎麼做，或者即使有可能。作為作業系統，我使用的是 CentOS 6.5，並且我在具有兩個網卡的 Vmware 虛擬機中執行它：一個具有 NAT 連接，與主機共享 Internet，另一個是具有本地地址的內部卡，用於通過 Putty 等進行連接.

我真的不需要發送電子郵件，但如果可以的話會很好，只需查看他們的內容以觀察行為。我從 PHP 站點發送了一些電子郵件，然後檢查/var/log/maillog使用tail，這是輸出：

Jun 17 16:47:21 localhost postfix/pickup[16879]: 5E2BFA4B38: uid=48 from=<no-reply@alomicuba.com>
Jun 17 16:47:21 localhost postfix/cleanup[16891]: 5E2BFA4B38: message-id=<53a0b06154856@alomicuba.com>
Jun 17 16:47:21 localhost postfix/qmgr[16880]: 5E2BFA4B38: from=<no-reply@alomicuba.com>, size=1773, nrcpt=1 (queue active)
Jun 17 16:47:21 localhost postfix/smtp[16893]: 5E2BFA4B38: to=<reynierpm@gmail.com>, relay=192.168.1.101[192.168.1.101]:25, delay=0.05, delays=0.03/0.01/0/0.01, dsn=5.0.0, status=bounced (host 192.168.1.101[192.168.1.101] said: 530 SMTP authentication is required. (in reply to RCPT TO command))
Jun 17 16:47:21 localhost postfix/cleanup[16891]: 67EE6A4B37: message-id=<20140617211721.67EE6A4B37@localhost.localdomain>
Jun 17 16:47:21 localhost postfix/qmgr[16880]: 67EE6A4B37: from=<>, size=3752, nrcpt=1 (queue active)
Jun 17 16:47:21 localhost postfix/bounce[16894]: 5E2BFA4B38: sender non-delivery notification: 67EE6A4B37
Jun 17 16:47:21 localhost postfix/qmgr[16880]: 5E2BFA4B38: removed
Jun 17 16:47:21 localhost postfix/smtp[16893]: 67EE6A4B37: to=<no-reply@alomicuba.com>, relay=192.168.1.101[192.168.1.101]:25, delay=0.01, delays=0/0/0/0.01, dsn=5.0.0, status=bounced (host 192.168.1.101[192.168.1.101] said: 530 SMTP authentication is required. (in reply to RCPT TO command))
Jun 17 16:47:21 localhost postfix/qmgr[16880]: 67EE6A4B37: removed

但是，如果我執行命令，postqueue -p我會得到Mail queue is empty電子郵件的去向？我需要查看他們的內容，postcat -vq XXXXXXXXXX但由於沒有電子郵件，我無法獲取 ID，為什麼？有什麼建議或幫助嗎？

postconf 命令輸出

2bounce_notice_recipient = postmaster
access_map_defer_code = 450
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 = ${stress?1}${stress: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_add_missing_headers = no
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 = yes
body_checks =
body_checks_size_limit = 51200
bounce_notice_recipient = postmaster
bounce_queue_lifetime = 5d
bounce_service_name = bounce
bounce_size_limit = 50000
bounce_template_file =
broken_sasl_auth_clients = no
canonical_classes = envelope_sender, envelope_recipient, header_sender, header_recipient
canonical_maps =
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 =
cyrus_sasl_config_path =
daemon_directory = /usr/libexec/postfix
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 = postmaster
delay_warning_time = 0h
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
error_notice_recipient = postmaster
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 =
header_size_limit = 102400
helpful_warnings = yes
home_mailbox =
hopcount_limit = 50
html_directory = no
ignore_mx_lookup_error = no
import_environment = MAIL_CONFIG MAIL_DEBUG MAIL_LOGTAG TZ XAUTHORITY DISPLAY LANG=C
in_flow_delay = 1s
inet_interfaces = localhost
inet_protocols = all
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_assume_final = no
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_type = cyrus
lmtp_send_xforward_command = no
lmtp_sender_dependent_authentication = no
lmtp_skip_5xx_greeting = yes
lmtp_skip_quit_response = no
lmtp_starttls_timeout = 300s
lmtp_tcp_port = 24
lmtp_tls_CAfile =
lmtp_tls_CApath =
lmtp_tls_cert_file =
lmtp_tls_ciphers = export
lmtp_tls_dcert_file =
lmtp_tls_dkey_file = $lmtp_tls_dcert_file
lmtp_tls_eccert_file =
lmtp_tls_eckey_file = $lmtp_tls_eccert_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_protocols = !SSLv2
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 = proxy:unix:passwd.byname $alias_maps
local_transport = local:$myhostname
luser_relay =
mail_name = Postfix
mail_owner = postfix
mail_release_date = 20100319
mail_spool_directory = /var/mail
mail_version = 2.6.6
mailbox_command =
mailbox_command_maps =
mailbox_delivery_lock = fcntl, dotlock
mailbox_size_limit = 51200000
mailbox_transport =
mailbox_transport_maps =
mailq_path = /usr/bin/mailq.postfix
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 =
master_service_disable =
max_idle = 100s
max_use = 100
maximal_backoff_time = 4000s
maximal_queue_lifetime = 5d
message_reject_characters =
message_size_limit = 10240000
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} {mail_host} {mail_mailer}
milter_protocol = 6
milter_rcpt_macros = i {rcpt_addr} {rcpt_host} {rcpt_mailer}
milter_unknown_command_macros =
mime_boundary_length_limit = 2048
mime_header_checks = $header_checks
mime_nesting_limit = 100
minimal_backoff_time = 300s
multi_instance_directories =
multi_instance_enable = no
multi_instance_group =
multi_instance_name =
multi_instance_wrapper =
multi_recipient_bounce_reject_code = 550
mydestination = $myhostname, localhost.$mydomain, localhost
mydomain = localdomain
myhostname = localhost.localdomain
mynetworks = 127.0.0.0/8 [::1]/128
mynetworks_style = subnet
myorigin = $myhostname
nested_header_checks = $header_checks
newaliases_path = /usr/bin/newaliases.postfix
non_fqdn_reject_code = 504
non_smtpd_milters =
notify_classes = resource, software
owner_request_special = yes
parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains,smtpd_access_maps
permit_mx_backup_networks =
pickup_service_name = pickup
plaintext_reject_code = 450
postmulti_control_commands = reload flush
postmulti_start_commands = start
postmulti_stop_commands = stop abort drain quick-stop
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
proxymap_service_name = proxymap
proxywrite_service_name = proxywrite
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 = /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-2.6.6/README_FILES
receive_override_options =
recipient_bcc_maps =
recipient_canonical_classes = envelope_recipient, header_recipient
recipient_canonical_maps =
recipient_delimiter =
reject_code = 554
reject_tempfail_action = defer_if_permit
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 = prueba.com
relay_domains_reject_code = 554
relay_initial_destination_concurrency = $initial_destination_concurrency
relay_recipient_maps =
relay_transport = relay
relayhost = 192.168.1.101
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-2.6.6/samples
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.postfix
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_ciphers = export
smtp_tls_dcert_file =
smtp_tls_dkey_file = $smtp_tls_dcert_file
smtp_tls_eccert_file =
smtp_tls_eckey_file = $smtp_tls_eccert_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_protocols = !SSLv2
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 =
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 = ${stress?1}${stress:20}
smtpd_helo_required = no
smtpd_helo_restrictions =
smtpd_history_flush_threshold = 100
smtpd_junk_command_limit = ${stress?1}${stress: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_recipient_limit = 1000
smtpd_recipient_overshoot_limit = 1000
smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination
smtpd_reject_unlisted_recipient = yes
smtpd_reject_unlisted_sender = no
smtpd_restriction_classes =
smtpd_sasl_auth_enable = no
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 =
smtpd_soft_error_limit = 10
smtpd_starttls_timeout = 300s
smtpd_timeout = ${stress?10}${stress:300}s
smtpd_tls_CAfile =
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 =
smtpd_tls_ciphers = export
smtpd_tls_dcert_file =
smtpd_tls_dh1024_param_file =
smtpd_tls_dh512_param_file =
smtpd_tls_dkey_file = $smtpd_tls_dcert_file
smtpd_tls_eccert_file =
smtpd_tls_eckey_file = $smtpd_tls_eccert_file
smtpd_tls_eecdh_grade = none
smtpd_tls_exclude_ciphers =
smtpd_tls_fingerprint_digest = md5
smtpd_tls_key_file = $smtpd_tls_cert_file
smtpd_tls_loglevel = 0
smtpd_tls_mandatory_ciphers = medium
smtpd_tls_mandatory_exclude_ciphers =
smtpd_tls_mandatory_protocols = SSLv3, TLSv1
smtpd_tls_protocols =
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_tls = no
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 = ${multi_instance_name:postfix}${multi_instance_name?$multi_instance_name}
tcp_windowsize = 0
tls_daemon_random_bytes = 32
tls_eecdh_strong_curve = prime256v1
tls_eecdh_ultra_curve = secp384r1
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_address_tempfail_action = $reject_tempfail_action
unknown_client_reject_code = 450
unknown_helo_hostname_tempfail_action = $reject_tempfail_action
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_defer_code = 450
unverified_recipient_reject_code = 450
unverified_recipient_reject_reason =
unverified_recipient_tempfail_action = $reject_tempfail_action
unverified_sender_defer_code = 450
unverified_sender_reject_code = 450
unverified_sender_reject_reason =
unverified_sender_tempfail_action = $reject_tempfail_action
verp_delimiter_filter = -=+
virtual_alias_domains = $virtual_alias_maps
virtual_alias_expansion_limit = 1000
virtual_alias_maps = $virtual_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 =

嘗試將 Gmail 配置為中繼

我遵循了本指南中的每一步，現在在重新啟動postfix服務並檢查日誌後，我得到了這個：

Jun 17 17:50:37 localhost postfix/postfix-script[17953]: stopping the Postfix mail system
Jun 17 17:50:37 localhost postfix/master[17903]: terminating on signal 15
Jun 17 17:50:37 localhost postfix/postfix-script[18025]: starting the Postfix mail system
Jun 17 17:50:37 localhost postfix/master[18026]: daemon started -- version 2.6.6, configuration /etc/postfix
Jun 17 17:50:37 localhost postfix/qmgr[18029]: AB33EA4B38: from=<no-reply@alomicuba.com>, size=1773, nrcpt=1 (queue active)
Jun 17 17:50:37 localhost postfix/smtp[18031]: fatal: open database /etc/postfix/sasl_passwd.db: Invalid argument
Jun 17 17:50:38 localhost postfix/master[18026]: warning: process /usr/libexec/postfix/smtp pid 18031 exit status 1
Jun 17 17:50:38 localhost postfix/master[18026]: warning: /usr/libexec/postfix/smtp: bad command startup -- throttling

我已經按照指南所說的在裡面sasl_passwd.db輸入nano sasl_passwd.db和寫入這個內容來創建文件[smtp.gmail.com]:587 username:password（當然改變了正確的使用者名：密碼值），我做錯了什麼？

您的 postfix 伺服器需要身份驗證才能將郵件發送到外部域：

530 SMTP authentication is required

這在您的日誌中。你應該讀過這個。

要解決此問題，您必須使用使用者名進行身份驗證或禁用 postfix 中的身份驗證要求。

要從您的網路禁用身份驗證，您需要在命令行中鍵入：

postconf -e mynetworks=192.168.1.0/24

或者編輯main.cf後綴文件夾中的文件，可能/etc/postifx包含以下內容：

mynetworks = 127.0.0.0/8, 192.168.1.0/24

考慮到您的內部網路是 192.168.1.0，子網遮罩是 255.255.255.0。

引用自：https://serverfault.com/questions/606639