postfix port 25: Address already in use

[Katharina Knuth]

Hallo,

ich bitte eingangs um etwas Nachsicht, bin schon ne
Weile aus der Thematik raus. Rent.

Ich habe gerade ein Problem auf dem Tisch, und komm
nich weiter. Also

Postfix mail_version = 3.4.5
postconf -n

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases, hash:/var/spool/postfix/plesk/aliases
append_dot_mydomain = yes
biff = no
body_checks = regexp:$filter/body_checks.regexp
bounce_queue_lifetime = 3d
bounce_template_file = /etc/postfix/bounce.cf
compatibility_level = 2
daemon_directory = /usr/lib/postfix/sbin
delay_warning_time = 24h
disable_vrfy_command = yes
filter = /etc/postfix/filter
header_checks = regexp:$filter/header_checks.regexp 
pcre:$filter/header_checks.pcre
inet_interfaces = all
inet_protocols = all
local_header_rewrite_clients =
local_recipient_maps = proxy:unix:passwd.byname
mail_name = PostfixAD
mailbox_size_limit = 0
mailman_destination_recipient_limit = 1
maximal_queue_lifetime = 3d
message_size_limit = 102400000
mime_header_checks = pcre:$filter/mime_header_checks
mydestination = server.art-domains.de, localhost, localhost.localdomain
myhostname = server.art-domains.de
mynetworks =
mynetworks_style = subnet
nested_header_checks = $header_checks
plesk_virtual_destination_recipient_limit = 1
recipient_canonical_classes = envelope_recipient,header_recipient
recipient_canonical_maps = tcp:127.0.0.1:12346
recipient_delimiter = +
relay_domains = $mydestination
remote_header_rewrite_domain =
sender_dependent_default_transport_maps = 
hash:/var/spool/postfix/plesk/sdd_transport_maps
setgid_group = postdrop
show_user_unknown_table_name = no
smtp_send_xforward_command = yes
smtp_tls_mandatory_protocols = !SSLv2,!SSLv3
smtp_tls_protocols = !SSLv2,!SSLv3
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_use_tls = no
smtpd_authorized_xforward_hosts = 127.0.0.0/8 [::1]/128
smtpd_banner = $myhostname ESMTP $mail_name
smtpd_client_restrictions =
smtpd_data_restrictions = reject_multi_recipient_bounce 
reject_unauth_pipelining
smtpd_helo_required = yes
smtpd_milters = , inet:127.0.0.1:12768
smtpd_proxy_options = speed_adjust
smtpd_proxy_timeout = 3600s
smtpd_recipient_restrictions = permit_mynetworks 
reject_non_fqdn_sender reject_non_fqdn_recipient 
reject_unknown_recipient_domain permit_sasl_authenticated 
reject_unauth_destination reject_unlisted_recipient 
check_recipient_access hash:/etc/postfix/filter/verbotene_empfaenger 
check_client_access hash:$filter/rbl_pass reject_rbl_client 
zen.spamhaus.org reject_rbl_client bl.spamcop.net reject_rbl_client 
b.barracudacentral.org reject_rbl_client bl.blocklist.de 
reject_rbl_client ix.dnsbl.manitu.net check_sender_access 
pcre:/etc/postfix/filter/sender_access check_client_access 
pcre:$filter/dynip check_sender_ns_access hash:$filter/bogus_dns 
check_sender_mx_access hash:$filter/wildcard_mx check_sender_mx_access 
cidr:$filter/bogon_networks.cidr check_policy_service inet:127.0.0.1:60023
smtpd_reject_unlisted_sender = yes
smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated 
reject_unauth_destination
smtpd_sasl_auth_enable = yes
smtpd_sender_restrictions = permit_mynetworks 
permit_sasl_authenticated reject_unauth_destination
smtpd_timeout = 3600s
smtpd_tls_cert_file = /etc/postfix/postfix.pem
smtpd_tls_ciphers = medium
smtpd_tls_key_file = $smtpd_tls_cert_file
smtpd_tls_mandatory_ciphers = medium
smtpd_tls_mandatory_protocols = TLSv1 TLSv1.1 TLSv1.2
smtpd_tls_protocols = TLSv1 TLSv1.1 TLSv1.2
smtpd_tls_security_level = may
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
tls_medium_cipherlist = 
EECDH+AESGCM+AES128:EECDH+AESGCM+AES256:EECDH+CHACHA20:EDH+AESGCM+AES128:EDH+AESGCM+AES256:EDH+CHACHA20:EECDH+SHA256+AES128:EECDH+SHA384+AES256:EDH+SHA256+AES128:EDH+SHA256+AES256:EECDH+SHA1+AES128:EECDH+SHA1+AES256:EDH+SHA1+AES128:EDH+SHA1+AES256:EECDH+HIGH:EDH+HIGH:AESGCM+AES128:AESGCM+AES256:CHACHA20:SHA256+AES128:SHA256+AES256:SHA1+AES128:SHA1+AES256:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK:!KRB5:!aECDH
transport_maps = , hash:/var/spool/postfix/plesk/transport
unknown_address_reject_code = 550
unknown_client_reject_code = 550
unverified_recipient_reject_code = 550
unverified_sender_reject_code = 550
virtual_alias_maps = $virtual_maps, hash:/var/spool/postfix/plesk/virtual
virtual_gid_maps = static:31
virtual_mailbox_base = /var/qmail/mailnames
virtual_mailbox_domains = $virtual_mailbox_maps, 
hash:/var/spool/postfix/plesk/virtual_domains
virtual_mailbox_limit = 0
virtual_mailbox_maps = , hash:/var/spool/postfix/plesk/vmailbox
virtual_transport = plesk_virtual
virtual_uid_maps = static:30


Es läuft eigentlich alles prima, ABER
wenn man Postfix reload oder stop und start macht,
stirbt Postfix mit

postfix/master[5138]: fatal: bind 0.0.0.0 port 25: Address already in use

und throttled dann. Im Netz habe ich nix passendes gefunden.
Wer kann mir  Richtung weisen?
-- 
Mit freundlichem Gruß,
With kind regard,
Katharina Knuth