[LUGOS] SMTP error 550

[Dalibor]

Server mi zavrne mail in vrne error 550. Zakaj mi vrne ta error mi ni 
jasno. Ali imam mogoče narobe nastavljen MX record ali kaj drugega? 
Čeprav ne verjamem, da je kaj narobe z mojim DNSom, ker to je prvi tak 
error. Mogoče kdo ve v čem je problem?

Your message did not reach some or all of the intended recipients.
Subject: FW: yyyyyyyyyyyyyyy
Sent: 23.05.2005 17:32
The following recipient(s) could not be reached:
xxxxxxxx at lianet.ru on 23.05.2005 17:32
The e-mail system was unable to deliver the message, but did not report 
a specific reason. Check the address and try again. If it still fails, 
contact your system administrator.

< mail.icetelecom.si #5.0.0 X-Postfix; host 
mail.yyyyy.yy[111.111.111.111] said: 550 5.0.0 We don't accept mail from 
spammers>