spamassassin throws errors in amavis cron job

The spamassassin install uses a cron job to do sync and cleanup called amavisd-new-cronjob. This job throws up errors on the Debian 7.

error creating a DNS resolver socket: Network is unreachable at 
/usr/share/perl5/Mail/SpamAssassin/ line 235.
plugin: eval failed: error closing socket: Bad file descriptor at 
/usr/share/perl5/Mail/SpamAssassin/ line 568.

Looking into it the culprit is the check for whether Bayesian filtering is enabled at all, i.e. these lines:

if ! perl -MMail::SpamAssassin -e "my \$spamtest = Mail::SpamAssassin->new();
\$spamtest->compile_now (); \$spamtest->{conf}->{use_bayes} ? exit 0 : exit 1"
 #bayes is disabled - just exit

Why it does not work and what precisely it needs, I have no idea and no desire to chase the error. Some Perl module or a plugin may be missing. Anyway, since Bayesian is enabled, I simply commented out the above lines in the /usr/sbin/amavisd-new-cronjob file and left it at that.

If you know how to fix it – let me know, please.… -->

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