On Mon, Oct 20, 2008 at 6:41 PM, Neil <[EMAIL PROTECTED]> wrote: > > On 20 Oct 2008, at 18:39, Linux Addict wrote: > > > > On Mon, Oct 20, 2008 at 6:33 PM, Neil <[EMAIL PROTECTED]> wrote: > >> On 20 Oct 2008, at 18:24, Linux Addict wrote: >> >> Hi, Looks like our MX servers are hit hard by a specific email address >> which is sending frequent mails trying to use our relay effectively many >> mail servers seems to be blacklisting. >> >> Oct 20 18:20:05 mx01 postfix/qmgr[6512]: DBB784BE68E: from=< >> [EMAIL PROTECTED]>, size=3309, nrcpt=1 (queue active) >> Oct 20 18:20:05 mx0 postfix/error[9345]: DA960E73E11: to=< >> [EMAIL PROTECTED]>, relay=none, delay=77080, >> delays=76950/130/0/0.01, dsn=4.4.1, status=deferred (delivery temporarily >> suspended: connect to exchange.net Connection timed out) >> >> Please help me stop this. Thank you! >> >> ~LA >> >> >> Unless I'm mistaken (and I'm not the most knowledgeable person on this >> list), I think your server thinks it's okay to accept mail for the domain " >> exchange.net" (and I'm assuming "exchange.net" isn't yours). So to fix >> this, you need to tell postfix only to accept mail for your domains. I >> think you should check my_destination, relay_domains, etc. >> >> Post the output of "postconf -n". >> >> -N. >> > > > Thanks for your reply. > > > mydestination = $myhostname > relay_domains = $mydestination > > Actually its not just exchange.net, most of the mails are being sent to > bellsouth.net > > Oct 20 18:37:27 mx01 postfix/qmgr[6597]: 5CE74D08FE1: from=< > [EMAIL PROTECTED]>, size=3237, nrcpt=1 (queue active) > Oct 20 18:37:27 mx01 postfix/error[6838]: 57AD01031088: to=< > [EMAIL PROTECTED]>, relay=none, delay=14928, delays=14928/0.05/0/0, > dsn=4.0.0, status=deferred (delivery temporarily suspended: host > gateway-f2.isp.att.net[207.115.11.16] refused to talk to me: 450 too > frequent connects from 63.240.86.13, please try again later.) > > > Thanks > LA > > > I don't think you need $mydestination in relay_domains. And the rest of > postconf -n would still be useful. >
alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/libexec/postfix debug_peer_level = 50 disable_vrfy_command = yes fallback_transport = maildrop header_checks = regexp:/etc/postfix/header_checks home_mailbox = Maildir/ html_directory = no inet_interfaces = all local_recipient_maps = proxy:unix:passwd.byname $virtual_alias_maps $alias_maps mail_owner = postfix mail_spool_directory = /var/spool/mail mailq_path = /usr/bin/mailq manpage_directory = /usr/local/man mydestination = $myhostname mydomain = example.net myhostname = mx02.example.net mynetworks = /etc/postfix/network_table mynetworks_style = class myorigin = $myhostname newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = no relay_domains = $mydestination sample_directory = /etc/postfix sendmail_path = /usr/sbin/sendmail setgid_group = postdrop smtp_tls_note_starttls_offer = yes smtp_use_tls = yes smtpd_banner = $myhostname ESMTP smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, reject_non_fqdn_hostname, reject_invalid_hostname, permit smtpd_recipient_limit = 300 smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_invalid_hostname, reject_unauth_pipelining, reject_non_fqdn_sender, reject_unknown_sender_domain, reject_non_fqdn_recipient, reject_unknown_recipient_domain, reject_rbl_client blackholes.easynet.nl, reject_rbl_client cbl.abuseat.org, reject_rbl_client proxies.blackholes.wirehub.net, reject_rbl_client bl.spamcop.net, reject_rbl_client sbl.spamhaus.org, reject_rbl_client dnsbl.njabl.org, reject_rbl_client list.dsbl.org, reject_rbl_client multihop.dsbl.org, permit smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = smtpd_sasl_security_options = noanonymous smtpd_tls_CAfile = /usr/share/ssl/certs/cacert.pem smtpd_tls_auth_only = no smtpd_tls_cert_file = /usr/share/ssl/certs/cert.pem smtpd_tls_key_file = /usr/share/ssl/certs/key.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes tls_random_exchange_name = /var/lib/postfix/prng_exch tls_random_source = dev:/dev/urandom transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 virtual_alias_maps = hash:/etc/postfix/maps/pf_aliases virtual_gid_maps = static:102 virtual_mailbox_base = /home/vmail virtual_mailbox_domains = hash:/etc/postfix/maps/pf_domain virtual_mailbox_limit = 51200000 virtual_mailbox_maps = hash:/etc/postfix/maps/pf_domain_mailboxes virtual_minimum_uid = 102 virtual_transport = maildrop virtual_uid_maps = static:102
