Wietse: > > http://www.postfix.org/postconf.5.html#sender_dependent_relayhost_maps
Naval saini: > Hello wietse, > This is working fine. Now i have to do one more thing which is "i used to > send mails from a php application.when i send mails from php application to > server using sasl authentication. I use multiple or different-2 from > address in php application for a single sasl user Now by using sender > dependent relaying i am not able to relay through specific host. Means i > can use anything in from address or for *unknown sender* but known *sasl > user* can we relaying through specific server. " Postfix has no sasl-dependent routing. If you allow your customers to choose any sender address without any limitation, then I don't think that I should be helping you. Wietse