Perl 5.12 Crash on Mail Service

Hi to all

since this morning i got Console full of messages telling that perl 5.12 crashed every 10 seconds

this is the issue:

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Jun 18 17:38:51 mail postfix/smtpd[44496]: warning: problem talking to server private/policy: Undefined error: 0

Jun 18 17:38:53 mail postfix/spawn[44997]: warning: command /usr/bin/perl killed by signal 10

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I post here also the output from my "postconf -n", i hope this helps

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biff = no

command_directory = /usr/sbin

config_directory = /etc/postfix

content_filter = smtp-amavis:[127.0.0.1]:10024

daemon_directory = /usr/libexec/postfix

data_directory = /Library/Server/Mail/Data/mta

debug_peer_level = 2

enable_server_options = yes

header_checks = pcre:/etc/postfix/custom_header_checks

html_directory = /usr/share/doc/postfix/html

imap_submit_cred_file = /private/etc/postfix/submit.cred

inet_interfaces = all

inet_protocols = all

mail_owner = _postfix

mailbox_size_limit = 0

mailbox_transport = dovecot

mailq_path = /usr/bin/mailq

manpage_directory = /usr/share/man

maps_rbl_domains =

message_size_limit = 20971520

mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain, smtp.reteambiente.it, mail.reteambiente.it, reteambiente.it

mydomain = reteambiente.it

mydomain_fallback = localhost

myhostname = mail.reteambiente.it

mynetworks = 127.0.0.0/8,[::1]/128,192.168.0.0/24,92.62.161.120

newaliases_path = /usr/bin/newaliases

postscreen_dnsbl_sites = zen.spamhaus.org*2

queue_directory = /Library/Server/Mail/Data/spool

readme_directory = /usr/share/doc/postfix

recipient_canonical_maps = hash:/etc/postfix/system_user_maps

recipient_delimiter = +

relayhost =

sample_directory = /usr/share/doc/postfix/examples

sendmail_path = /usr/sbin/sendmail

setgid_group = _postdrop

smtpd_client_restrictions = permit_mynetworks permit_sasl_authenticated reject_rbl_client zen.spamhaus.org permit

smtpd_enforce_tls = no

smtpd_helo_required = yes

smtpd_helo_restrictions = permit_sasl_authenticated permit_mynetworks reject_invalid_helo_hostname reject_non_fqdn_helo_hostname

smtpd_pw_server_security_options = cram-md5,login,plain

smtpd_recipient_restrictions = permit_sasl_authenticated permit_mynetworks reject_unauth_destination check_policy_service unix:private/policy permit

smtpd_sasl_auth_enable = yes

smtpd_tls_CAfile = /etc/certificates/mail.reteambiente.it.E9E736E5B8168C9B44FA41332CB109F82713E3AF .chain.pem

smtpd_tls_cert_file = /etc/certificates/mail.reteambiente.it.E9E736E5B8168C9B44FA41332CB109F82713E3AF .cert.pem

smtpd_tls_ciphers = medium

smtpd_tls_exclude_ciphers = SSLv2, aNULL, ADH, eNULL

smtpd_tls_key_file = /etc/certificates/mail.reteambiente.it.E9E736E5B8168C9B44FA41332CB109F82713E3AF .key.pem

smtpd_use_pw_server = yes

smtpd_use_tls = yes

tls_random_source = dev:/dev/urandom

unknown_local_recipient_reject_code = 550

use_sacl_cache = yes

virtual_alias_maps = $virtual_maps

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Any idea?

thank in advance!