+ driver = smtp
+ interface = HOSTIPV4
+ port = PORT_S
+ hide socks_proxy = HOSTIPV4 port=PORT_D OPT
+ hosts_try_fastopen = ${if eq {$local_part}{user_tfo} {*}}
+ debug_print = transport_name <$transport_name>
+ event_action = ${if eq {smtp:connect}{$event_name} {${acl {logger}}} {}}