delay:
accept
+ logwrite = $sender_host_name
delay = 2s
# ----- Routers -----
begin transports
smtp:
driver = smtp
- hosts = 127.0.0.1
+ hosts = ${if eq {b}{$local_part} {HOSTIPV4}{127.0.0.1}}
port = ${if eq {c}{$local_part} {PORT_D2}{PORT_D}}
allow_localhost
hosts_try_fastopen =