Mailversand bei neuinstallierten Postfix nicht möglich

Di Feb 9 12:44:49 CET 2021

Hallo zusammen,

ich bekomme beim Senden von einem Mailclient an meinen neuen Mailserver 
(Debian/Buster mit Postfix und Dovecot) mx2.example.tld folgende 
Fehlermeldung:

Feb  9 12:06:10 mx2 postfix/postscreen[15181]: CONNECT from [93.195.93.185]:
58552 to [192.168.1.65]:25
Feb  9 12:06:10 mx2 postfix/postscreen[15181]: PREGREET 25 after 0.02 from 
[93.195.93.185]:58552: EHLO stuttgart.localnet\r\n
Feb  9 12:06:10 mx2 postfix/postscreen[15181]: DISCONNECT [93.195.93.185]:
58552

Und vom Webmailer auf demselben Server:
Feb  9 12:06:54 mx2 postfix/submission/smtpd[15175]: connect from 
mx2.example.tld[192.168.1.65]
Feb  9 12:06:54 mx2 postfix/submission/smtpd[15175]: Anonymous TLS connection 
established from mx2.example.tld[192.168.1.65]: TLSv1.2 with cipher DHE-RSA-
CHACHA20-POLY1305 (256/256 bits)
Feb  9 12:06:54 mx2 postfix/submission/smtpd[15175]: warning: SASL: Connect to 
private/auth failed: No such file or directory
Feb  9 12:06:54 mx2 postfix/submission/smtpd[15175]: fatal: no SASL 
authentication mechanisms
Feb  9 12:06:55 mx2 postfix/master[15103]: warning: process /usr/lib/postfix/
sbin/smtpd pid 15175 exit status 1

Emails Abrufen über Client und Webmailer funktionieren dagegen.

Ich versuche gerade Rspamd anstelle von Amavis zu installieren.
Anbei 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 = mx2.example.tld
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.1.0/24 
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 = drop
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.[10;11]*8 
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 = drop
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 = check_sender_access hash:/etc/postfix/
check_sender_access, 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/mx2.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/mx2.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

Vielleicht könnt Ihr mir auf dei Sprünge helfen.

Mit besten Grüßen

Andreas
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