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 experimental_prdr
+acl_smtp_data_prdr string* unset main 4.82 with experimental_prdr, 4.83 unless disable_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
dkim_selector string* unset smtp 4.70
dkim_sign_headers string* (RFC4871) smtp 4.70
dkim_strict string* unset smtp 4.70
+dkim_timestamps integer* unset smtp 4.92
dkim_verify_signers string* $dkim_signers main 4.70
directory string* unset appendfile
directory_file string* + appendfile
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_cname_loops integer 0 main 4.92 Set to 9 for older behaviour
dns_csa_search_limit integer 5 main 4.60
dns_csa_use_reverse boolean true main 4.60
dns_dnssec_ok integer -1 main 4.82
hosts_nopass_tls host list unset smtp 4.00
hosts_noproxy_tls host list "*" smtp 4.90
hosts_override boolean false smtp 2.11
+hosts_pipe_connect host_list unset smtp 4.93 if experimental_pipe_connect
hosts_randomize boolean false manualroute 4.00
false smtp 3.14
hosts_require_auth host list unset smtp 4.00
pipe_as_creator boolean false pipe
pipe_transport string* unset redirect 4.00
pipelining_advertise_hosts host list "*" main 4.14
+pipelining__connect_advertise_hosts host list "*" main 4.92 if experimental_pipe_connect
port integer 0 iplookup 4.00
string "smtp" smtp
preserve_message_logs boolean false main
timeout_frozen_after time 0s main 3.20
timezone string + main 3.15
tls_advertise_hosts host list * main 3.20
+tls_advertise_requiretls host list * main 4.92 if experimental_requiretls
tls_certificate string* unset main 3.20
unset smtp 3.20
tls_dh_max_bits integer 2236 main 4.80
use_shell boolean false pipe 1.70
user string + routers 4.00
unset transports 4.00 replaces individual options
+utf8_downconvert integer unset smtp 4.92 if SUPPORT_I18N
uucp_from_pattern string + main 1.75
uucp_from_sender string* "$1" main 1.75
verify boolean true routers 4.00