I get this error whenever I try to update plesk or add rbl to plesk

[hariskhan]

Hello,

I am receiving the error mentioned below, whenever I run a plesk update or add a server to rbl in Server > Mail.

# cat /tmp/psa-rblmng-script___reconfiguration.071127.21.36.log
START psa-rblmng-script-- installing AT Tue Nov 27 21:36:19 CET 2007
dpkg action:
/usr/sbin/mysqld (pid 3244) is running...
Trying to establish test connection... connected
done

ERROR while trying to check the hostname

STOP psa-rblmng-script-- installing AT Tue Nov 27 21:36:20 CET 2007


I found this workaround, but its a manual tweak on the interactive shell;

export PLESK_DISABLE_HOSTNAME_CHECKING=yes

but this is only a temporary workaround.

I can't update the list of rbls' in plesk under Server > Mail because of this error.

How do I get rid of it?