On 2/8/2012 9:24 PM, Joe Wong wrote: > Hello Noel, > > The IP I mentioned was not the remote IP, but the IP address in the > oubound MTA machine. > > - Joe
[please don't top post] Indeed. Use sender_dependent_default_transport_maps to select a transport defined in master.cf that is bound to a specific IP with "... -o smtp_bind_address=0.1.2.3" a brief example (you can find other examples in the archives): # master.cf #(these are copies of the smtp...smtp default transport) out_joe unix - - n - - smtp -o smtp_bind_address=192.0.1.10 out_bob unix - - n - - smtp -o smtp_bind_address=192.0.1.20 # main.cf sender_dependent_default_transport_maps = hash:/etc/postfix/sender_transport # sender_transport @joe.example.com out_joe: @bob.example.com out_bob: -- Noel Jones
