I tried to use transport as following: transport_maps = local.cf remote.cf - local.cf contains a sql query which returns "virtual" if the "u...@domain" matches. - remote.cf contains a sql query which return "smtp:[mail.gateway]" if the domain matches.
Did this according to TABLE SEARCH ORDER section of transport(5), but it still doesn't work. Local users are finely delivered but I get "Recipient address rejected: User unknown in virtual mailbox table" for remote users. As I said, I'm still not (yet :)) very familiar with Postfix. Could somebody tell what am I missing ? > > > Hi. > > > > > > I'm trying to setup a multi-server mail architecture with a mail > > > gateway and 2 final dest. servers hosting mailboxes, all on the same > > > domain. I'm using virtual mailboxes wih MySQL backend (same for the 3 > > > servers). > > > > > > I set up the gateway which forwards to end servers. > > > The problem is that I can't get to send email from one end server to > > > the other. > > > > ...why would you ever do that ? > > I'm upgrading my company's mail system which is working like that for > years... > > > You send mail to the machine that holds the destination mailbox. > > Mailstores never send mail to each other. > > > > You should also be aware of the fact that such a setup is fully > > dependent on the mail gateway; if that goes down, you have no mail > > system left. > > Indeed, but the mail gateway is actually made of 2 virtual machines for > load balancing/failover, to avoid that kind of problem. > > > > First I tried to make the server act like if the mailbox didn't exist > > > on the local server (with SQL where) thinking that if it doesn't exist > > > here, the mail will be relayed to the 'relay_host', but getting "User > > > unknown in virtual mailbox table". > > > It is not working better with "relay_domains" directive, because it is > > > already set in "virtual_mailbox_domains" one. > > > > That won't work. > > You say you have user data in a SQL table; then use that to determine > > which backend should get what. > > transport_maps would work fine for this. > > > > > I red the all nearly all documentation I found, especially the official > > > one, but I'm missing some details. > > > > Yes; first and foremost, you're missing the transport(5) man page: > > http://www.postfix.org/transport.5.html > > Well, I already read that manpage several times, but I'm lacking some > Postfix fundamentals... > > Anyway, thanks Jeroen for your answer. > It is quite blur to me but I think you suggest me to create 2 different > sort of transport : > - One would be an "alias" to virtual delivery if the query says the user is > local > - The second would forward mail to remote users using the smtp delivery > > Correct me if I'm wrong :)
