Noel, > > I need to use 'mail()' PHP function on a UNIX system, which uses > Postfix > > as MTA. > > > > On Linux systems, mail() function use the 'sendmail' program to > transmit > > messages. And so, my PHP program uses postfix setup to transmit the > > messages. In particular, it looks up DNS for MX of destination domain > an > > forward it to the correct destination. > > > > Now I have the problem, that indeed I need that some messages have to > be > > forwarded directly to the destination, while the ones generated by my > > mail application should be sent trhough a smart host (setting up > > relayhost=smart.host.tld). > > > > How could I do? Is it possible to change the "relayhost" postfix > > parameter on the fly? Or what? > > > > Thanks, > > > > rocsca > > You can change it based on the envelope sender > http://www.postfix.org/postconf.5.html#sender_dependent_relayhost_maps
Magnifico! ;-) Thanks, rocsca