acl_smtp_auth string* unset main 4.00
acl_smtp_connect string* unset main 4.11
acl_smtp_data string* unset main 4.00
+acl_smtp_data_prdr string* unset main 4.82 with expreimental_prdr
+acl_smtp_dkim string* unset main 4.70 unless disable_dkim
acl_smtp_etrn string* unset main 4.00
acl_smtp_expn string* unset main 4.00
acl_smtp_helo string* unset main 4.20
disable_ipv6 boolean false main 4.61
disable_logging boolean false routers 4.11
false transports 4.11
+dmarc_forensic_sender string unset main 4.82 if experimental_dmarc
+dmarc_history_file string unset main 4.82 if experimental_dmarc
+dmarc_tld_file string unset main 4.82 if experimental_dmarc
dns_again_means_nonexist domain list unset main 1.89
dns_check_names_pattern string + main 2.11
dns_csa_search_limit integer 5 main 4.60
dns_retrans time 0s main 1.60
dns_retry integer 0 main 1.60
dns_search_parents boolean false smtp
+dns_use_dnssec integer -1 main 4.82
dns_use_edns0 integer -1 main 4.76
domains domain list unset routers 4.00
driver string unset authenticators
unset routers 4.00
unset transports
drop_cr boolean false main 4.00 became a no-op in 4.21
+dscp string unset smtp 4.82
dsn_from string* + main 4.67
envelope_to_add boolean false transports
envelope_to_remove boolean true main
forbid_pipe boolean false redirect 4.00
forbid_sieve_filter boolean false redirect 4.44
forbid_smtp_code boolean false redirect 4.63
+force_command boolean false pipe 4.82
freeze_exec_fail boolean false pipe 1.89
freeze_signal boolean false pipe 4.75
freeze_tell boolean false main 4.00 replaces freeze_tell_mailmaster
gecos_pattern string unset main
gethostbyname boolean false smtp
gnutls_compat_mode boolean unset main 4.70
+gnutls_enable_pkcs11 boolean false main 4.82
gnutls_require_kx string* unset main 4.67 deprecated, warns
string* unset smtp 4.67 deprecated, warns
gnutls_require_mac string* unset main 4.67 deprecated, warns
hosts_randomize boolean false manualroute 4.00
false smtp 3.14
hosts_require_auth host list unset smtp 4.00
+hosts_require_ocsp host list unset smtp 4.82 if experimental_ocsp
hosts_require_tls host list unset smtp 3.20
hosts_treat_as_local domain list unset main 1.95
hosts_try_auth host list unset smtp 4.00
+hosts_try_prdr host list unset smtp 4.82 if experimental_prdr
ibase_servers string unset main 4.23
ignore_bounce_errors_after time 0s main 4.00
ignore_eacces boolean false redirect 4.00
once_file_size integer 0 autoreply 3.20
once_repeat time 0s autoreply 2.95
one_time boolean false redirect 4.00
-openssl_options string unset main 4.73 default to unset in 4.80
+openssl_options string +no_sslv2 main 4.73 default changed in 4.80
optional boolean false iplookup 4.00
oracle_servers string unset main 4.00
owners string list unset redirect 4.00
port integer 0 iplookup 4.00
string "smtp" smtp
preserve_message_logs boolean false main
+prdr_enable boolean false main 4.82 if experimental_prdr
primary_hostname string + main
print_topbitchars boolean false main 1.89
process_log_path string unset main 4.21
tls_certificate string* unset main 3.20
unset smtp 3.20
tls_dh_max_bits integer 2236 main 4.80
+tls_dh_min_bits integer 1024 smtp 4.82
tls_dhparam string* unset main 3.20
+tls_ocsp_file string* unset main 4.80 if experimental_ocsp
tls_on_connect_ports string unset main 4.43
tls_privatekey string* unset main 3.20
unset smtp 3.20
-bh Test incoming SMTP call, omitting callouts
-bhc Test incoming SMTP call, with callouts
-bi * Run <command>bi_command</command>
+-bI:help Show list of accepted -bI:<tag> options
-bm Accept message on standard input
-bmalware + Invoke configured malware scanning against supplied filename
-bnq Don't qualify addresses in locally submitted messages
DELIVER_IN_BUFFER_SIZE optional*
DELIVER_OUT_BUFFER_SIZE optional*
DISABLE_DKIM optional disables DKIM support
+DISABLE_DNSSEC optional disables attempts to use DNSSEC
DISABLE_D_OPTION optional disables -D option
ERRNO_QUOTA optional* error code for system quota failures
EXICYCLOG_MAX optional number of old log files to keep