On Mon, 1 Aug 2022 at 23:33, <post...@ptld.com> wrote: > > > Hi, > > Does your Private address 192.168.x.x have a default gateway as well? > > Rgds/DP > > No, the gateway is left blank on that interface. The private interfaces are > just cabled together via a switch. > > In systemd: > [ipv4] > address1=192.168.0.200/24 > may-fail=true > method=manual
Hi, Then Postfix should not make any attempt to deliver mail using the private address since it doesn't have a network route to deliver the mail through that interface anyways. Rgds/DP
