Commit 709aed2c authored by Jesse Norell's avatar Jesse Norell

add smtpd_helo_restrictions

parent bc3a7750
......@@ -903,6 +903,7 @@ class installer_base {
'{rbl_list}' => $rbl_list,
'{greylisting}' => $greylisting,
'{reject_slm}' => $reject_sender_login_mismatch,
'{myhostname}' => $conf['hostname'],
);
$postconf_tpl = rfsel($conf['ispconfig_install_dir'].'/server/conf-custom/install/debian_postfix.conf.master', 'tpl/debian_postfix.conf.master');
......@@ -933,6 +934,27 @@ class installer_base {
if(!is_file('/var/lib/mailman/data/transport-mailman')) touch('/var/lib/mailman/data/transport-mailman');
exec('/usr/sbin/postmap /var/lib/mailman/data/transport-mailman');
//* Create auxillary postfix conf files
$configfile = 'helo_access';
if(is_file($config_dir.'/'.$configfile)) {
copy($config_dir.'/'.$configfile, $config_dir.'/'.$configfile.'~');
}
chmod($config_dir.'/'.$configfile.'~', 0400);
$content = rfsel($conf['ispconfig_install_dir'].'/server/conf-custom/install/'.$configfile.'.master', 'tpl/'.$configfile.'.master');
$content = strtr($content, $postconf_placeholders);
# todo: look up this server's ip addrs and loop through each
# todo: look up domains hosted on this server and loop through each
wf($config_dir.'/'.$configfile, $content);
$configfile = 'blacklist_helo';
if(is_file($config_dir.'/'.$configfile)) {
copy($config_dir.'/'.$configfile, $config_dir.'/'.$configfile.'~');
}
chmod($config_dir.'/'.$configfile.'~', 0400);
$content = rfsel($conf['ispconfig_install_dir'].'/server/conf-custom/install/'.$configfile.'.master', 'tpl/'.$configfile.'.master');
$content = strtr($content, $postconf_placeholders);
wf($config_dir.'/'.$configfile, $content);
//* Make a backup copy of the main.cf file
copy($config_dir.'/main.cf', $config_dir.'/main.cf~');
......
# blacklist_helo - after permit_sasl, used to stop common spammers/misconfigurations
#
# probably just put REJECT lines in here,
# as OK lines will bypass a lot of other checks you may want done
# (use DUNNO instead of OK)
#
# common for spammers (check https://data.iana.org/TLD/tlds-alpha-by-domain.txt and remove valid tld's occasionally)
/.*\.administrator$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.admin$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.adsl$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.arpa$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.bac$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.coma$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.dhcp$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.dlink$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.dns$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.domain$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.dynamic$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.dyndns\.org$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.dyn$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.firewall$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.gateway$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.home$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.internal$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.intern$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.janak$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.kornet$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.lab$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.lan$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.localdomain$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.localhost$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
# .local is used by spammers a lot, but too many otherwise legit servers hit it
# (instead of REJECT, should send to greylisting)
#/.*\.local$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.loc$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.lokal$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.mail$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.nat$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.netzwerk$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.pc$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.privat$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.private$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.router$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.setup$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.119$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.beeline$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.cici$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.gt_3g$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.gt-3g$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.hananet$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.skbroadband$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
/.*\.tbroad$/ REJECT HELO hostname is using a top level domain that does not exist. See RFC 2821 section 3.6.
......@@ -24,6 +24,8 @@ relay_domains = mysql:{config_dir}/mysql-virtual_relaydomains.cf
relay_recipient_maps = mysql:{config_dir}/mysql-virtual_relayrecipientmaps.cf
smtpd_sender_login_maps = proxy:mysql:{config_dir}/mysql-virtual_sender_login_maps.cf
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $sender_bcc_maps $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps
smtpd_helo_required = yes
smtpd_helo_restrictions = reject_invalid_helo_hostname, permit_mynetworks, check_helo_access regexp:{config_dir}/helo_access, permit_sasl_authenticated, reject_non_fqdn_helo_hostname, check_helo_access regexp:{config_dir}/blacklist_helo, warn_if_reject reject_unknown_helo_hostname, permit
smtpd_sender_restrictions = check_sender_access mysql:{config_dir}/mysql-virtual_sender.cf regexp:{config_dir}/tag_as_originating.re{reject_slm}, permit_mynetworks, check_sender_access regexp:{config_dir}/tag_as_foreign.re
smtpd_client_restrictions = check_client_access mysql:{config_dir}/mysql-virtual_client.cf
smtpd_client_message_rate_limit = 100
......
......@@ -21,6 +21,8 @@ relay_domains = mysql:{config_dir}/mysql-virtual_relaydomains.cf
relay_recipient_maps = mysql:{config_dir}/mysql-virtual_relayrecipientmaps.cf
smtpd_sender_login_maps = proxy:mysql:{config_dir}/mysql-virtual_sender_login_maps.cf
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $sender_bcc_maps $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps
smtpd_helo_required = yes
smtpd_helo_restrictions = reject_invalid_helo_hostname, permit_mynetworks, check_helo_access regexp:{config_dir}/helo_access, permit_sasl_authenticated, reject_non_fqdn_helo_hostname, check_helo_access regexp:{config_dir}/blacklist_helo, warn_if_reject reject_unknown_helo_hostname, permit
smtpd_sender_restrictions = check_sender_access mysql:{config_dir}/mysql-virtual_sender.cf regexp:{config_dir}/tag_as_originating.re{reject_slm}, permit_mynetworks, check_sender_access regexp:{config_dir}/tag_as_foreign.re
smtpd_client_restrictions = check_client_access mysql:{config_dir}/mysql-virtual_client.cf
smtpd_client_message_rate_limit = 100
......
......@@ -20,6 +20,8 @@ relay_domains = mysql:{config_dir}/mysql-virtual_relaydomains.cf
relay_recipient_maps = mysql:{config_dir}/mysql-virtual_relayrecipientmaps.cf
smtpd_sender_login_maps = proxy:mysql:{config_dir}/mysql-virtual_sender_login_maps.cf
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps
smtpd_helo_required = yes
smtpd_helo_restrictions = reject_invalid_helo_hostname, permit_mynetworks, check_helo_access regexp:{config_dir}/helo_access, permit_sasl_authenticated, reject_non_fqdn_helo_hostname, check_helo_access regexp:{config_dir}/blacklist_helo, warn_if_reject reject_unknown_helo_hostname, permit
smtpd_sender_restrictions = check_sender_access mysql:{config_dir}/mysql-virtual_sender.cf regexp:{config_dir}/tag_as_originating.re{reject_slm}, permit_mynetworks, check_sender_access regexp:{config_dir}/tag_as_foreign.re
smtpd_client_restrictions = check_client_access mysql:{config_dir}/mysql-virtual_client.cf
smtpd_client_message_rate_limit = 100
......
# helo_access - before permit_sasl
# be sure to list your own hostname(s), domain(s) and IP address(es) here
# Reject others identifying with this machine's hostnames and IP addresses
{myhostname} REJECT
#/^((smtp|mx|mail)\.domain1\.com$/ REJECT
#/^mail\.domain2\.com$/ REJECT
# TODO: this server's ip addr loop here
#/^\[?1\.2\.3\.4\]?$/ REJECT
#/^\[?12\.34\.56\.78\]?$/ REJECT
#/^\[?123\.234\.123\.234\]?$/ REJECT
# Reject others identifying as domains we host
# TODO: this server's hosted mail domains loop here
#/^domain1\.com$/ REJECT
#/^domain2\.com$/ REJECT
#/^domain3\.net$/ REJECT
......@@ -23,6 +23,8 @@ relay_domains = mysql:{config_dir}/mysql-virtual_relaydomains.cf
relay_recipient_maps = mysql:{config_dir}/mysql-virtual_relayrecipientmaps.cf
smtpd_sender_login_maps = proxy:mysql:{config_dir}/mysql-virtual_sender_login_maps.cf
proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $sender_bcc_maps $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $smtpd_sender_login_maps
smtpd_helo_required = yes
smtpd_helo_restrictions = reject_invalid_helo_hostname, permit_mynetworks, check_helo_access regexp:{config_dir}/helo_access, permit_sasl_authenticated, reject_non_fqdn_helo_hostname, check_helo_access regexp:{config_dir}/blacklist_helo, warn_if_reject reject_unknown_helo_hostname, permit
smtpd_sender_restrictions = check_sender_access mysql:{config_dir}/mysql-virtual_sender.cf regexp:{config_dir}/tag_as_originating.re{reject_slm}, permit_mynetworks, check_sender_access regexp:{config_dir}/tag_as_foreign.re
smtpd_client_restrictions = check_client_access mysql:{config_dir}/mysql-virtual_client.cf
smtpd_client_message_rate_limit = 100
......
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