Postfix Mail Transport Agent

rebell21 · 7. Mai 2026

ich habe in cockpit gesehen, dass ich bei den Diensten eine Fehlermeldung habe.

"Failed to start Postfix Mail Transport Agent"

Wozu brauche ich einen Postfix Mail Transport agent

Was bedeutet die Fehlermeldung ? Wie kann ich das beheben ?

Sauerland · 7. Mai 2026

Mail Transfer Agent – Wikipedia

Der wird auch intern zum versenden von Systemmails benutzt.

Poste einmal ausgeführt als root:

Code

systemctl status postfix.service

rebell21 · 7. Mai 2026

Code

linux-notebook:/home/peter # systemctl status postfix.service
× postfix.service - Postfix Mail Transport Agent
     Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; preset: enabled)
     Active: failed (Result: exit-code) since Thu 2026-05-07 18:48:40 CEST; 3h 20min ago
 Invocation: d924a7da831a40429ff7bacc4b3ba004
    Process: 1995 ExecStartPre=/bin/echo Starting mail service (Postfix) (code=exited, status=0/SUCCESS)
    Process: 2000 ExecStartPre=/usr/bin/touch /var/spool/postfix/pid/master.pid (code=exited, status=0/SUCCESS)
    Process: 2036 ExecStartPre=/sbin/restorecon -Rv /var/spool/postfix/pid/master.pid (code=exited, status=0/SUCCESS)
    Process: 2051 ExecStartPre=/usr/lib/postfix/systemd/config_postfix (code=exited, status=0/SUCCESS)
    Process: 2076 ExecStartPre=/usr/lib/postfix/systemd/update_chroot (code=exited, status=0/SUCCESS)
    Process: 2100 ExecStartPre=/usr/lib/postfix/systemd/update_postmaps (code=exited, status=1/FAILURE)
    Process: 2145 ExecStopPost=/usr/lib/postfix/systemd/cond_slp deregister (code=exited, status=0/SUCCESS)
        CPU: 331ms

Mai 07 18:48:37 linux-notebook systemd[1]: Starting Postfix Mail Transport Agent...
Mai 07 18:48:37 linux-notebook echo[1995]: Starting mail service (Postfix)
Mai 07 18:48:38 linux-notebook update_postmaps[2116]: postconf: fatal: parameter inet_interfaces: no local interface found for ::1
Mai 07 18:48:39 linux-notebook update_postmaps[2100]: Not supported database
Mai 07 18:48:39 linux-notebook systemd[1]: postfix.service: Control process exited, code=exited, status=1/FAILURE
Mai 07 18:48:39 linux-notebook cond_slp[2147]: /usr/sbin/postconf: fatal: parameter inet_interfaces: no local interface found for ::1
Mai 07 18:48:40 linux-notebook systemd[1]: postfix.service: Failed with result 'exit-code'.
Mai 07 18:48:40 linux-notebook systemd[1]: Failed to start Postfix Mail Transport Agent.
linux-notebook:/home/peter #

Alles anzeigen

Sauerland · 8. Mai 2026

Zitat von rebell21

linux-notebook cond_slp[2147]: /usr/sbin/postconf: fatal: parameter inet_interfaces: no local interface found for ::1

Dann ist diese IP nicht gesetzt?

Code

ip a

rebell21 · 8. Mai 2026

meine aktive IP Adresse geht über WLAN1

Code

peter@linux-notebook:~> su
Passwort: 
linux-notebook:/home/peter # ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: em1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
    link/ether ec:f4:bb:03:b5:be brd ff:ff:ff:ff:ff:ff
    altname eno1
    altname enp0s25
    altname enxecf4bb03b5be
3: wwp0s29u1u6i6: <BROADCAST,MULTICAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 92:bc:f1:83:35:60 brd ff:ff:ff:ff:ff:ff
4: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether e0:9d:31:02:92:70 brd ff:ff:ff:ff:ff:ff
    altname wlp2s0
    altname wlxe09d31029270
    inet 192.168.2.218/24 brd 192.168.2.255 scope global wlan1
       valid_lft forever preferred_lft forever
5: br-64ed8e9990b8: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether ce:21:68:c7:54:2c brd ff:ff:ff:ff:ff:ff
    inet 172.18.0.1/16 brd 172.18.255.255 scope global br-64ed8e9990b8
       valid_lft forever preferred_lft forever
6: br-2b87cb510561: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:12:f7:d0:d7:15 brd ff:ff:ff:ff:ff:ff
    inet 172.19.0.1/16 brd 172.19.255.255 scope global br-2b87cb510561
       valid_lft forever preferred_lft forever
7: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether fa:84:ab:40:04:9e brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
8: vethbe87ada@if2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master br-2b87cb510561 state UP group default 
    link/ether 5e:de:87:35:1b:9d br

Alles anzeigen

wie kann ich die Adresse für postfix ändern ? Ist es /etc/postfix/main.cf

Sauerland · 8. Mai 2026

Du kannst postfix auch stoppen und disablen:

Code

systemctl stop postfix.service

Code

systemctl disable postfix.service

Sauerland · 8. Mai 2026

Oder:

Postfix not run - interface not found for ::1

Hi A simple fix if your not running ipv6, just edit the line in main.cf (around line 706); inet_interfaces=all to inet_interfaces=ipv4

forums.opensuse.org

rebell21 · 8. Mai 2026

ich habe es gelöst durch Änderungen in /etc/postfix/main.cf

Code

inet_interfaces = all
smtp_bind_address = 192.168.2.218

systemctl restart postfix.service

das Ergebnis

Code

linux-notebook:/home/peter # systemctl status postfix.service
● postfix.service - Postfix Mail Transport Agent
     Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; preset: enabled)
     Active: active (running) since Fri 2026-05-08 09:09:22 CEST; 7s ago
 Invocation: 7e630692d9cf4fd98040e24c4b0af565
    Process: 7421 ExecStartPre=/bin/echo Starting mail service (Postfix) (code=exited, status=0/SUCCESS)
    Process: 7423 ExecStartPre=/usr/bin/touch /var/spool/postfix/pid/master.pid (code=exited, status=0/SUCCESS)
    Process: 7424 ExecStartPre=/sbin/restorecon -Rv /var/spool/postfix/pid/master.pid (code=exited, status=0/SUCCESS)
    Process: 7426 ExecStartPre=/usr/lib/postfix/systemd/config_postfix (code=exited, status=0/SUCCESS)
    Process: 7429 ExecStartPre=/usr/lib/postfix/systemd/update_chroot (code=exited, status=0/SUCCESS)
    Process: 7431 ExecStartPre=/usr/lib/postfix/systemd/update_postmaps (code=exited, status=0/SUCCESS)
    Process: 7449 ExecStart=/usr/sbin/postfix start (code=exited, status=0/SUCCESS)
    Process: 7523 ExecStartPost=/usr/lib/postfix/systemd/wait_qmgr 60 (code=exited, status=0/SUCCESS)
    Process: 7527 ExecStartPost=/usr/lib/postfix/systemd/cond_slp register (code=exited, status=0/SUCCESS)
   Main PID: 7519 (master)
      Tasks: 3 (limit: 9210)
        CPU: 1.603s
     CGroup: /system.slice/postfix.service
             ├─7519 /usr/lib/postfix/bin//master -w
             ├─7520 pickup -l -t fifo -u
             └─7521 qmgr -l -t fifo -u

Mai 08 09:09:22 linux-notebook postfix[7524]: To disable backwards compatibility use "postconf compatibility_level=3.6" and "postfix reload"
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "disable_dns_lookups" will be removed; instead, specify "smt>
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_enforce_tls" will be removed; instead, specify "smtp_t>
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_use_tls" will be removed; instead, specify "smtp_tls_s>
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtpd_use_tls" will be removed; instead, specify "smtpd_tls>
Mai 08 09:09:22 linux-notebook systemd[1]: Started Postfix Mail Transport Agent.
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "disable_dns_lookups" will be removed; instead, specify "smt>
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_enforce_tls" will be removed; instead, specify "smtp_t>
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_use_tls" will be removed; instead, specify "smtp_tls_s>
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtpd_use_tls" will be removed; instead, specify "smtpd_tls>
...skipping...
● postfix.service - Postfix Mail Transport Agent
     Loaded: loaded (/usr/lib/systemd/system/postfix.service; enabled; preset: enabled)
     Active: active (running) since Fri 2026-05-08 09:09:22 CEST; 7s ago
 Invocation: 7e630692d9cf4fd98040e24c4b0af565
    Process: 7421 ExecStartPre=/bin/echo Starting mail service (Postfix) (code=exited, status=0/SUCCESS)
    Process: 7423 ExecStartPre=/usr/bin/touch /var/spool/postfix/pid/master.pid (code=exited, status=0/SUCCESS)
    Process: 7424 ExecStartPre=/sbin/restorecon -Rv /var/spool/postfix/pid/master.pid (code=exited, status=0/SUCCESS)
    Process: 7426 ExecStartPre=/usr/lib/postfix/systemd/config_postfix (code=exited, status=0/SUCCESS)
    Process: 7429 ExecStartPre=/usr/lib/postfix/systemd/update_chroot (code=exited, status=0/SUCCESS)
    Process: 7431 ExecStartPre=/usr/lib/postfix/systemd/update_postmaps (code=exited, status=0/SUCCESS)
    Process: 7449 ExecStart=/usr/sbin/postfix start (code=exited, status=0/SUCCESS)
    Process: 7523 ExecStartPost=/usr/lib/postfix/systemd/wait_qmgr 60 (code=exited, status=0/SUCCESS)
    Process: 7527 ExecStartPost=/usr/lib/postfix/systemd/cond_slp register (code=exited, status=0/SUCCESS)
   Main PID: 7519 (master)
      Tasks: 3 (limit: 9210)
        CPU: 1.603s
     CGroup: /system.slice/postfix.service
             ├─7519 /usr/lib/postfix/bin//master -w
             ├─7520 pickup -l -t fifo -u
             └─7521 qmgr -l -t fifo -u

Mai 08 09:09:22 linux-notebook postfix[7524]: To disable backwards compatibility use "postconf compatibility_level=3.6" and "postfix reload"
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "disable_dns_lookups" will be removed; instead, specify "smt>
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_enforce_tls" will be removed; instead, specify "smtp_t>
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_use_tls" will be removed; instead, specify "smtp_tls_s>
Mai 08 09:09:22 linux-notebook cond_slp[7534]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtpd_use_tls" will be removed; instead, specify "smtpd_tls>
Mai 08 09:09:22 linux-notebook systemd[1]: Started Postfix Mail Transport Agent.
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "disable_dns_lookups" will be removed; instead, specify "smt>
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_enforce_tls" will be removed; instead, specify "smtp_t>
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_use_tls" will be removed; instead, specify "smtp_tls_s>
Mai 08 09:09:22 linux-notebook cond_slp[7540]: /usr/sbin/postconf: warning: /etc/postfix/main.cf: support for parameter "smtpd_use_tls" will be removed; instead, specify "smtpd_tls>
~
~
~
linux-notebook:/home/peter # postconf | grep smtp_bind_address
postconf: warning: /etc/postfix/main.cf: support for parameter "disable_dns_lookups" will be removed; instead, specify "smtp_dns_support_level"
postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_use_tls" will be removed; instead, specify "smtp_tls_security_level"
postconf: warning: /etc/postfix/main.cf: support for parameter "smtp_enforce_tls" will be removed; instead, specify "smtp_tls_security_level"
postconf: warning: /etc/postfix/main.cf: support for parameter "smtpd_use_tls" will be removed; instead, specify "smtpd_tls_security_level"
smtp_bind_address = 192.2.168.218
smtp_bind_address6 =
smtp_bind_address_enforce = no
linux-notebook:/home/peter #

Alles anzeigen

Jetzt ist der Fehler für den Dienst auch in Cockpit weg und der Dienst läuft. Vermisst habe ich ihn bisher nicht

Sauerland · 8. Mai 2026

Schön das es funktioniert.

rebell21 · 8. Mai 2026

danke für Deine Hilfe

Postfix Mail Transport Agent

Ubuntu 26.10 „Stonking Stingray“ ist erschienen

Tumbleweed-Update bricht ab

KDE Plasma 6.8 verabschiedet sich von X11

VBox - gemeinsame Zwischenablage

Linux-Kernel: Kennzeichnungspflicht für KI-generierten Code soll entfallen

k.113

BlackPhoenix

aitexturegenerator

Giorgio68

pavelstr

Teilen

Tags