Wietse: > Your first mistake is to use postscreen to submit mail from > an application.
Naval saini: > Than please tell me how can i balance load of outgoing mails using haproxy > and what postfix program i should use to receive mails from php application > and balancing load using haproxy backhand servers. Turn off postscreen. http://www.postfix.org/POSTSCREEN_README.html#turnoff Turn on smtpd_upstream_proxy_protocol. http://www.postfix.org/postconf.5.html#smtpd_upstream_proxy_protocol > Does relayhost parameter play any role in haproxy like it plays in DNS load > balancing. Your problem is RECEIVING mail. relayhost is for SENDING mail. http://www.postfix.org/BASIC_CONFIGURATION_README.html Wietse