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# Exim test configuration 2033
# TLS client: verify certificate from server - name-fails
SERVER=
exim_path = EXIM_PATH
keep_environment =
host_lookup_order = bydns
primary_hostname = myhost.test.ex
spool_directory = DIR/spool
log_file_path = DIR/spool/log/SERVER%slog
gecos_pattern = ""
gecos_name = CALLER_NAME
FX = DIR/aux-fixed
S1 = FX/exim-ca/example.com/server1.example.com
CA1 = S1/ca_chain.pem
CERT1 = S1/server1.example.com.pem
KEY1 = S1/server1.example.com.unlocked.key
CA2 = FX/cert2
CERT2 = FX/cert2
KEY2 = FX/cert2
# ----- Main settings -----
disable_ipv6 = true
acl_smtp_rcpt = accept
log_selector = +tls_peerdn+tls_certificate_verified
queue_only
queue_run_in_order
tls_advertise_hosts = *
# Set certificate only if server
tls_certificate = ${if eq {SERVER}{server}{CERT1}fail}
tls_privatekey = ${if eq {SERVER}{server}{KEY1}fail}
tls_verify_hosts = *
tls_verify_certificates = ${if eq {SERVER}{server}{CERT2}fail}
# ----- Routers -----
begin routers
server_dump:
driver = redirect
condition = ${if eq {SERVER}{server}{yes}{no}}
data = :blackhole:
client_x:
driver = accept
local_parts = userx
retry_use_local_part
transport = send_to_server_failcert
errors_to = ""
client_y:
driver = accept
local_parts = usery
retry_use_local_part
transport = send_to_server_retry
client_z:
driver = accept
local_parts = userz
retry_use_local_part
transport = send_to_server_crypt
client_q:
driver = accept
local_parts = userq
retry_use_local_part
transport = send_to_server_req_fail
client_r:
driver = accept
local_parts = userr
retry_use_local_part
transport = send_to_server_req_failname
client_s:
driver = accept
local_parts = users
retry_use_local_part
transport = send_to_server_req_passname
client_t:
driver = accept
local_parts = usert
retry_use_local_part
transport = send_to_server_req_failcarryon
# ----- Transports -----
begin transports
# this will fail to verify the cert at HOSTIPV4 so fail the crypt requirement
send_to_server_failcert:
driver = smtp
allow_localhost
hosts = HOSTIPV4
hosts_require_tls = HOSTIPV4
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = CA2
# this will fail to verify the cert at HOSTIPV4 so fail the crypt, then retry on 127.1; ok
send_to_server_retry:
driver = smtp
allow_localhost
hosts = HOSTIPV4 : 127.0.0.1
hosts_require_tls = HOSTIPV4
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = \
${if eq{$host_address}{127.0.0.1}{CA1}{CA2}}
# this will fail to verify the cert but continue unverified though crypted
send_to_server_crypt:
driver = smtp
allow_localhost
hosts = HOSTIPV4
hosts_require_tls = HOSTIPV4
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = CA2
tls_try_verify_hosts = *
# this will fail to verify the cert at HOSTNAME and fallback to unencrypted
# Fail due to lack of correct CA
send_to_server_req_fail:
driver = smtp
allow_localhost
hosts = HOSTNAME
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = CA2
tls_verify_hosts = *
# this will fail to verify the cert name and fallback to unencrypted
# fail because the cert is "server1.example.com" and the test system is something else
send_to_server_req_failname:
driver = smtp
allow_localhost
hosts = HOSTNAME
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = CA1
tls_verify_cert_hostnames = *
tls_verify_hosts = *
# this will pass the cert verify including name check
# our stunt DNS has an A record for server1.example.com -> HOSTIPV4
send_to_server_req_passname:
driver = smtp
allow_localhost
hosts = server1.example.com
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = CA1
tls_verify_cert_hostnames = *
tls_verify_hosts = *
# this will fail to verify the cert name but carry on (try-verify mode)
# fail because the cert is "server1.example.com" and the test system is something else
send_to_server_req_failcarryon:
driver = smtp
allow_localhost
hosts = HOSTNAME
port = PORT_D
tls_certificate = CERT2
tls_privatekey = CERT2
tls_verify_certificates = CA1
tls_verify_cert_hostnames = *
tls_try_verify_hosts = *
# End
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