In article <c4pvro$fip$1@nemesis.news.tpi.pl>, HooK wrote:
> ----- Transcript of session follows -----
> 451 federacja-konsumentow.org.pl: Name server timeout
> Warning: message still undelivered after 4 hours
> Will keep trying until message is 5 days old

$ host -t mx federacja-konsumentow.org.pl
federacja-konsumentow.org.pl mail is handled by 5 mail.info-logic.pl

$ nslookup mail.info-logic.pl
[..]
Name: mail.info-logic.pl
Address: 213.77.33.114

?

--
Marcin