mailcow/data/conf/postfix/local_transport

/watchdog@localhost$/   watchdog_discard:
/localhost$/  local:
[Postfix] Route watchdog@localhost to local7 discard 2019-09-05 05:07:35 +08:00			`/watchdog@localhost$/ watchdog_discard:`
[Postfix] Mandatory protocol for authenticated clients over 587/tcp and 465/tcp is now TLSv1.0+ (reverts previous protocol change for authenticated users only) [Postfix] Force route localhost$ over local: 2019-03-06 22:09:28 +08:00			`/localhost$/ local:`