SECTION(global, daemon)m4_dnl
daemon_smtp_ports = CONF_smtp_port : CONF_submission_port
-SECTION(global, tls)m4_dnl
-tls_certificate = CONF_sysconf_dir/server.cert
-tls_privatekey = CONF_sysconf_dir/server.key
-tls_advertise_hosts = *
-tls_dhparam = CONF_ca_dir/dh-param-2048.pem
-tls_require_ciphers = ${if or {{={$received_port}{CONF_submission_port}} \
- {match_ip {$sender_host_address}{+trusted}}} \
- {CONF_good_ciphers} \
- {CONF_acceptable_ciphers}}
-tls_verify_certificates = CONF_ca_dir/ca.cert
-tls_verify_hosts = ${if eq{$acl_c_mode}{submission} {} {+allnets}}
-
DIVERT(null)
###--------------------------------------------------------------------------
### Check source addresses for apparently local senders.
## Check that a submitted message's sender address is allowable.
require acl = mail_client_addr
- ## Insist that a local client connect through TLS.
- deny message = Hosts within CONF_master_domain must use TLS
- !condition = ${if eq{$acl_c_mode}{submission}}
- hosts = +allnets
- !encrypted = *
-
SECTION(acl, misc)m4_dnl
mail_client_addr:
add_header = :after_received:X-Distorted-Warning: \
RCLNTLSNDR \
Apparently local sender, but received from remote \
- server.
+ server.\n\t\
+ sender=$sender_address \
+ host=$sender_host_address
## OK.
accept
## Send mail on to a host in our own network. We must apply extra security.
local:
driver = dnslookup
- domains = ! +known : *.CONF_master_domain
+ domains = ${if bool {${LOOKUP_DOMAIN($domain,
+ {KV(service, {$value}{true})},
+ {false})}} \
+ {}{ ! +public : \
+ CONF_master_domain : \
+ *.CONF_master_domain }}
self = fail
transport = smtp_local
no_more
## Send mail on to unknown hosts.
remote:
driver = dnslookup
- domains = ! +known
+ domains = ${if bool {${LOOKUP_DOMAIN($domain,
+ {KV(service, {$value}{true})},
+ {false})}} \
+ {}{ ! +public }}
self = fail
transport = smtp
no_more