Open Relay? Missbrauch von Spammern?

[Scott]

Hallo FOrum,

ich habe folgende EInträge in meiner /var/log/warn gesehen:

Dec 26 20:39:23 berlin152 postfix/smtp[13081]: warning: no MX host for etrademail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13078]: warning: no MX host for edmail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13082]: warning: no MX host for edmail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13085]: warning: no MX host for xoommail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13087]: warning: no MX host for prodigy.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13090]: warning: no MX host for netvoyage.net has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13083]: warning: no MX host for casc.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13095]: warning: no MX host for noblecan.org has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13082]: warning: no MX host for ezin.net has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13077]: warning: no MX host for chickmail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13121]: warning: no MX host for mediaone.net has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13088]: warning: no MX host for etrademail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13095]: warning: no MX host for chickmail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13089]: warning: no MX host for prodigy.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13085]: warning: no MX host for usa.pipeline.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13123]: warning: no MX host for etrademail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13125]: warning: no MX host for chickmail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13126]: warning: no MX host for prodigy.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13087]: warning: no MX host for c-com.net has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13127]: warning: no MX host for chickmail.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13129]: warning: no MX host for prodigy.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13130]: warning: no MX host for prodigy.com has a valid A record
Dec 26 20:39:23 berlin152 postfix/smtp[13117]: warning: no MX host for gameassault.com has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13225]: warning: no MX host for hookup.net has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13229]: warning: no MX host for genesisdirect.com has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13233]: warning: no MX host for jan.eng.sc.rolm.com has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13237]: warning: no MX host for chickmail.com has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13238]: warning: no MX host for conok.com has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13241]: warning: no MX host for favoriteart.com has a valid A record
Dec 26 20:56:03 berlin152 postfix/smtp[13239]: warning: no MX host for iaml.net has a valid A record


dort stehen noch viel viel mehr Einträge drin.

Heisst das jetzt, dass mein Server missbraucht wird, oder das es versucht wird den Server zu missbrauchen???

Danke für Eure Antworten!

[psy]

mach doch mal nen openrelay-check (http://www.ordb.org/submit/)

[Scott]

Hi psy,

danke für den Tip!

Ist das ein seriöses Angebot?

[Flightbase]

und - was kam dabei raus?

wie war die lösung des porblems? ;)


greets, Nik

[Scott]

Hi Flightbase,

sorry, normalerweise schreibe ich immer ein Ergebnis.

Also,
das kam jetzt dabei heraus:

The host you submitted at ORDB.org (xxx.xxx.xxx.xxx), has been thoroughly checked, and does not seem to permit relaying.



Scheint wohl dicht zu sein.

Ich habe damals einen Fehler in der Postfix main.cf entdeckt.

"mynetworks_style = host" hatte ich damals auf "class" stehen.

Jetzt sind die Warnings weg :)

Schöne Ostern wünsch ich Dir...

[stefaan]

Servus!


Ist das ein seriöses Angebot?
Entweder dein Server ist dicht und alles ist in Ordnung, oder du stehst gleich auf den RBLs und somit wäre das Problem auch gelöst :D :ugly:

Grüße, Stefan