begin transports
smtp:
- driver = smtp
- port = PORT_S
+ driver = smtp
+ port = PORT_S
+ interface = ${if eq {bindfail}{$local_part} {1.1.1.1}{}}
+ hosts_try_fastopen = :
lmtp:
- driver = smtp
- port = PORT_S
- protocol = lmtp
+ driver = smtp
+ port = PORT_S
+ protocol = lmtp
# ----- Retry -----