Keine Mailzustellung über Submission
Andreas
postfix at linuxmaker.de
Mi Mär 17 08:36:33 CET 2021
Guten Morgen Sandy,
>
> Dann hängt es wahrscheinlich mit dem zusammen, was nicht hier steht. (^-^)
> "Mails von außen" kommen diese wirklich über den Submission Port rein oder
> über den Port 25, also smtpd in der master?
Dann fange ich einmal mit der Firewall an, um diesen Faktor ausschliessen zu
können, denn der Mailserver liegt hinter einer Firewall:
160 9164 ACCEPT tcp -- * * 0.0.0.0/0 192.168.1.71
multiport dports 25,465,587,143,993,110,995,4190
0 0 ACCEPT tcp -- * * 192.168.1.71 0.0.0.0/0
multiport dports 25,465,587,143,993,110,995,4190
>
> Poste bitte die Ausgabe von "postconf -n"
alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
bounce_queue_lifetime = 1h
broken_sasl_auth_clients = yes
compatibility_level = 2
disable_vrfy_command = yes
html_directory = /usr/share/doc/postfix/html
inet_interfaces = all
inet_protocols = all
mailbox_size_limit = 0
maximal_backoff_time = 15m
maximal_queue_lifetime = 1h
message_size_limit = 52428800
milter_default_action = accept
milter_mail_macros = i {mail_addr} {client_addr} {client_name} {auth_authen}
milter_protocol = 6
minimal_backoff_time = 5m
mua_client_restrictions = permit_mynetworks permit_sasl_authenticated reject
mua_relay_restrictions = reject_non_fqdn_recipient
reject_unknown_recipient_domain permit_mynetworks permit_sasl_authenticated
reject
mua_sender_restrictions = permit_mynetworks reject_non_fqdn_sender
reject_sender_login_mismatch permit_sasl_authenticated reject
mydestination = mx.example.tld, localhost.example.tld, localhost
myhostname = mx.example.tld
mynetworks = 127.0.0.0/8 192.168.1.0/24 192.102.24.0/24 [::ffff:127.0.0.0]/104
[::1]/128
myorigin = /etc/mailname
non_smtpd_milters = inet:localhost:11332
plaintext_reject_code = 550
postscreen_access_list = permit_mynetworks cidr:/etc/postfix/postscreen_access
postscreen_bare_newline_enable = no
postscreen_blacklist_action = drop
postscreen_cache_cleanup_interval = 24h
postscreen_cache_map = proxy:btree:$data_directory/postscreen_cache
postscreen_dnsbl_action = enforce
postscreen_dnsbl_sites = b.barracudacentral.org=127.0.0.2*7
dnsbl.inps.de=127.0.0.2*7 bl.mailspike.net=127.0.0.2*5
bl.mailspike.net=127.0.0.[10;11;12]*4 dnsbl.sorbs.net=127.0.0.10*8
dnsbl.sorbs.net=127.0.0.5*6 dnsbl.sorbs.net=127.0.0.7*3
dnsbl.sorbs.net=127.0.0.8*2 dnsbl.sorbs.net=127.0.0.6*2
dnsbl.sorbs.net=127.0.0.9*2 zen.spamhaus.org=127.0.0.[4..7]*6
zen.spamhaus.org=127.0.0.3*4 zen.spamhaus.org=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.2*3
hostkarma.junkemailfilter.com=127.0.0.4*1
hostkarma.junkemailfilter.com=127.0.1.2*1 wl.mailspike.net=127.0.0.
[18;19;20]*-2 hostkarma.junkemailfilter.com=127.0.0.1*-2
postscreen_dnsbl_threshold = 8
postscreen_dnsbl_ttl = 5m
postscreen_greet_action = enforce
postscreen_greet_banner = $smtpd_banner
postscreen_greet_ttl = 2d
postscreen_greet_wait = 3s
postscreen_non_smtp_command_enable = no
postscreen_pipelining_enable = no
proxy_read_maps = proxy:mysql:/etc/postfix/sql/mysql_virtual_sender_acl.cf,
proxy:mysql:/etc/postfix/sql/mysql_tls_enforce_out_policy.cf, proxy:mysql:/
etc/postfix/sql/mysql_tls_enforce_in_policy.cf, $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
$smtpd_sender_login_maps
queue_run_delay = 5m
readme_directory = /usr/share/doc/postfix
recipient_delimiter = +
relay_domains = proxy:mysql:/etc/postfix/sql/mysql_virtual_mxdomain_maps.cf
relay_recipient_maps = proxy:mysql:/etc/postfix/sql/
mysql_relay_recipient_maps.cf
relayhost =
sender_dependent_default_transport_maps = proxy:mysql:/etc/postfix/sql/
mysql_tls_enforce_out_policy.cf
smtp_dns_support_level = dnssec
smtp_header_checks = pcre:/etc/postfix/submission_header_cleanup
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
smtp_tls_ciphers = high
smtp_tls_loglevel = 1
smtp_tls_policy_maps = mysql:/etc/postfix/sql/tls-policy.cf
smtp_tls_protocols = !SSLv2, !SSLv3
smtp_tls_security_level = dane
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname
smtpd_client_restrictions = permit_mynetworks check_client_access hash:/etc/
postfix/without_ptr reject_unknown_client_hostname
smtpd_data_restrictions = reject_unauth_pipelining
smtpd_delay_reject = yes
smtpd_error_sleep_time = 10s
smtpd_hard_error_limit = ${stress?1}${stress:5}
smtpd_helo_required = yes
smtpd_helo_restrictions = permit_mynetworks reject_invalid_helo_hostname
reject_non_fqdn_helo_hostname reject_unknown_helo_hostname
smtpd_milters = inet:localhost:11332
smtpd_proxy_timeout = 600s
smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks,
reject_invalid_helo_hostname, reject_unknown_reverse_client_hostname,
reject_unauth_destination
smtpd_relay_restrictions = reject_non_fqdn_recipient
reject_unknown_recipient_domain permit_mynetworks reject_unauth_destination
smtpd_restriction_classes = mua_sender_restrictions mua_client_restrictions
mua_relay_restrictions
smtpd_sasl_auth_enable = yes
smtpd_sasl_authenticated_header = yes
smtpd_sasl_path = private/auth_dovecot
smtpd_sasl_type = dovecot
smtpd_sender_login_maps = proxy:mysql:/etc/postfix/sql/
mysql_virtual_sender_acl.cf
smtpd_sender_restrictions = reject_authenticated_sender_login_mismatch,
permit_mynetworks, reject_sender_login_mismatch, permit_sasl_authenticated,
reject_unlisted_sender, reject_unknown_sender_domain
smtpd_soft_error_limit = 3
smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/letsencrypt/live/mx.example.tld/fullchain.pem
smtpd_tls_ciphers = high
smtpd_tls_dh1024_param_file = /etc/ssl/mail/dhparams_2048.pem
smtpd_tls_dh512_param_file = /etc/ssl/mail/dhparams_512.pem
smtpd_tls_eecdh_grade = strong
smtpd_tls_exclude_ciphers = ECDHE-RSA-RC4-SHA, RC4, aNULL
smtpd_tls_key_file = /etc/letsencrypt/live/mx.example.tld/privkey.pem
smtpd_tls_loglevel = 1
smtpd_tls_mandatory_ciphers = high
smtpd_tls_mandatory_exclude_ciphers = ECDHE-RSA-RC4-SHA, RC4, aNULL
smtpd_tls_mandatory_protocols = !SSLv3
smtpd_tls_protocols = !SSLv3
smtpd_tls_security_level = may
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
tls_high_cipherlist =
EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA384:EECDH+aRSA+SHA256:EECDH:
+CAMELLIA256:+AES256:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!
MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!ECDSA:CAMELLIA256-SHA:AES256-SHA:CAMELLIA128-
SHA:AES128-SHA
tls_preempt_cipherlist = yes
tls_ssl_options = NO_COMPRESSION
virtual_alias_maps = proxy:mysql:/etc/postfix/sql/mysql_virtual_alias_maps.cf,
proxy:mysql:/etc/postfix/sql/mysql_virtual_spamalias_maps.cf, proxy:mysql:/
etc/postfix/sql/mysql_virtual_alias_domain_maps.cf, proxy:mysql:/etc/postfix/
sql/mysql_virtual_alias_domain_catchall_maps.cf
virtual_gid_maps = static:5000
virtual_mailbox_base = /var/vmail/
virtual_mailbox_domains = proxy:mysql:/etc/postfix/sql/
mysql_virtual_domains_maps.cf
virtual_mailbox_maps = proxy:mysql:/etc/postfix/sql/
mysql_virtual_mailbox_maps.cf, proxy:mysql:/etc/postfix/sql/
mysql_virtual_alias_domain_mailbox_maps.cf
virtual_minimum_uid = 104
virtual_transport = lmtp:unix:private/dovecot-lmtp
virtual_uid_maps = static:5000
> und die Logdateien beim Start von
> Postfix
Das ist direkt nach dem Start von Postfix, Dovecot und RSpamd:
Mar 17 08:22:22 mx postfix/postfix-script[20923]: warning: symlink leaves
directory: /etc/postfix/./makedefs.out
Mar 17 08:22:22 mx postfix/postfix-script[20964]: starting the Postfix mail
system
Mar 17 08:22:22 mx postfix/master[20966]: daemon started -- version 3.4.14,
configuration /etc/postfix
Mar 17 08:22:22 mx postfix/pickup[20967]: 919F1601668: uid=0 from=<root>
Mar 17 08:22:22 mx postfix/cleanup[20977]: warning: connect to Milter service
inet:localhost:11332: Connection refused
Mar 17 08:22:22 mx postfix/cleanup[20977]: 919F1601668: message-
id=<20210317072222.919F1601668 at mx.example.tld>
Mar 17 08:22:22 mx postfix/qmgr[20968]: 919F1601668:
from=<root at mx.example.tld>, size=1856, nrcpt=1 (queue active)
Mar 17 08:22:22 mx postfix/pickup[20967]: C2FA960092B: uid=0 from=<root>
Mar 17 08:22:22 mx postfix/cleanup[20977]: warning: connect to Milter service
inet:localhost:11332: Connection refused
Mar 17 08:22:22 mx postfix/cleanup[20977]: C2FA960092B: message-
id=<20210317072222.C2FA960092B at mx.example.tld>
Direkt auffallen tut mir der Milter Service.
> und wenn ein Client versucht, eine Mail einzuliefern.
> Submission (Port 587) sollte nur für das Einliefern von Clients verwendet
> werden, die sich authentifizieren und nicht abgewiesen werden sollen.
>
Auf meinem funktionierenden Server sehe im Log
Mar 17 08:27:16 mx postfix/smtp[12439]: connect to
mx.example.tld[192.109.24.70]:25: Connection timed out
Mar 17 08:27:16 mx postfix/smtp[12439]: BE00B120062: to=<wh at example.tld>,
relay=none, delay=30, delays=0.2/0.05/30/0, dsn=4.4.1, status=deferred
(connect to mx.example.tld[192.109.24.70]:25: Connection timed out)
Im Zeitraum von 08:27:02 bis 08:27:35 sehe ich dem Server nichts was auf
diesen Kontaktversuch schliessen lässt.
Beste Grüße und vielen Dank bis dahin
Andreas
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