Добрый день. почтовый сервер почему то перестал получать почту от многих клиентов.
Feb 18 14:03:49 mail postfix/smtpd[2795]: NOQUEUE: reject: RCPT from unknown[xxx.xxx.xxx.xxx]: 450 4.7.1 Client host rejected: cannot find your hostname, [xxx.xxx.xxx.xxx]; from=<*@aikkom.ru> to=<*@terletskiy.com.ru> proto=ESMTP helo=<NAM04-CO1-obe.outbound.protection.outlook.com>
Подскажите в чем может быть причина?
main.cf
inet_protocols = ipv4
smtpd_reject_unlisted_recipient = yes
smtpd_reject_unlisted_sender = yes
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_unknown_client, reject_unknown_client,reject_unverified_sender, reject_non_fqdn_sender
smtpd_client_restrictions = check_sender_access hash:/etc/postfix/whitelist, reject_unauth_destination, reject_unknown_client
relay_domains = $mydestination
smtpd_sender_restrictions = reject_unknown_sender_domain, reject_non_fqdn_sender
#smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/my_domains, reject
smtpd_sasl_auth_enable = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth