С недавнего времени образовалась такая проблема.
При отправке писем на определенный домен почта застревает и не доходит, в /var/log/mail/all вот такие строки:
Jul 6 10:45:50 proxy postfix/smtp[27849]: 3AD33148002: host mxb.vinexim.ru[78.24.0.44] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command)
Jul 6 10:45:50 proxy postfix/smtp[28207]: 36BCE148010: host mxb.vinexim.ru[78.24.0.44] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command)
Jul 6 10:45:50 proxy postfix/smtp[28232]: 14B1CF4BAA: host mxb.vinexim.ru[78.24.0.44] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command)
Jul 6 10:45:50 proxy postfix/smtp[27849]: 3AD33148002: host mxb.vinexim.ru[78.24.0.44] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command)
Jul 6 10:45:50 proxy postfix/smtp[28232]: 14B1CF4BAA: host mxb.vinexim.ru[78.24.0.44] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command)
Jul 6 10:45:51 proxy postfix/smtp[28207]: 36BCE148010: to=<dugin@vinexim.ru>, relay=mxc.vinexim.ru[217.147.23.179]:25, delay=58299, delays=58294/1.6/2.5/0.94, dsn=4.7.1, status=deferred (host mxc.vinexim.ru[217.147.23.179] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command))
Jul 6 10:45:51 proxy postfix/smtp[28232]: 14B1CF4BAA: to=<dugin@vinexim.ru>, relay=mxc.vinexim.ru[217.147.23.179]:25, delay=72987, delays=72982/1.8/2.1/0.93, dsn=4.7.1, status=deferred (host mxc.vinexim.ru[217.147.23.179] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command))
Jul 6 10:45:51 proxy postfix/smtp[27849]: 3AD33148002: to=<dugin@vinexim.ru>, relay=mxc.vinexim.ru[217.147.23.179]:25, delay=320577, delays=320572/1.6/2.5/0.93, dsn=4.7.1, status=deferred (host mxc.vinexim.ru[217.147.23.179] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command))
Jul 6 10:45:52 proxy postfix/smtp[28232]: 14B1CF4BAA: to=<korolkova@vinexim.ru>, relay=mxc.vinexim.ru[217.147.23.179]:25, delay=72987, delays=72982/1.8/2.1/1.2, dsn=4.7.1, status=deferred (host mxc.vinexim.ru[217.147.23.179] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command))
Jul 6 10:45:52 proxy postfix/smtp[27849]: 3AD33148002: to=<korolkova@vinexim.ru>, relay=mxc.vinexim.ru[217.147.23.179]:25, delay=320577, delays=320572/1.6/2.5/1.2, dsn=4.7.1, status=deferred (host mxc.vinexim.ru[217.147.23.179] said: 450 4.7.1 <мой.домен>: Helo command rejected: Host not found (in reply to RCPT TO command))
вот конфиг постфикса (main.cf):
# Global Postfix configuration file. This file lists only a small subset
# of all parameters. For the syntax, and for a complete parameter list,
# see the postconf(5) manual page. For a commented and more complete
# version of this file see /etc/postfix/main.cf.dist
mynetworks = localhost, $myhostname, $config_directory/mynetworks
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_use_tls = yes
smtpd_tls_key_file = /var/lib/ssl/private/postfix.key
smtpd_tls_cert_file = /var/lib/ssl/certs/postfix.cert
smtpd_helo_required = yes
smtpd_helo_restrictions = check_recipient_access cdb:/etc/postfix/whitelist, permit_mynetworks, permit_sasl_authenticated, check_helo_access cdb:/etc/postfix/helo_access, permit
smtpd_client_restrictions = check_recipient_access cdb:/etc/postfix/whitelist, permit_mynetworks, permit_sasl_authenticated, check_client_access cdb:/etc/postfix/client_access, permit
smtpd_sender_restrictions = check_recipient_access cdb:/etc/postfix/whitelist, permit_mynetworks, permit_sasl_authenticated, check_sender_access cdb:/etc/postfix/sender_access, permit
smtpd_recipient_restrictions = check_recipient_access cdb:/etc/postfix/recipient_access, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, permit
virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf, ldap:/etc/postfix/ldap-users.cf
local_recipient_maps = proxy:unix:passwd.byname $alias_maps ldap:/etc/postfix/ldap-users.cf
mailbox_unpriv_delivery = no
relayhost =
mailbox_size_limit = 500000000
message_size_limit = 419430400
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = noanonymous
В чем может быть проблема?
Заранее спасибо!