Method of Postfix replacement export IP address in Linux

Description
Their own post Office server because of configuration problems, was brought to mass bulk spam. Now the egg hurts, send emails to Gmail or other mailboxes, will be sent back or directly in the bin. One complaint too troublesome, direct change postfix export IP on the line.

Realize:

The code is as follows	Copy Code
# cp/etc/postfix/master.cf/etc/postfix/master.cf.bak.2013.10.29

Save the original configuration, error also better recovery!!

code is as follows	copy code
# vim/etc/postfix/master.cf smtp      Unix  -      -      -       -      -       SMTP # when relaying Mail as backup MX, disable Fallback_relay to avoid MX loops relay     unix -  &nbs p;   -      -      -       -       SMTP         -o smtp_fallback_relay=

Change to the following, here 192.168.1.1 is the IP address you want to replace

The code is as follows	Copy Code
smtp       unix -      -      -       -      -       SMTP        -o smtp_bind_address=192.168.1.1 # when relaying mail as backup MX, disable Fallback_relay to avoid MX loops relay     unix -       -      -      -       -       SMTP        -O smtp_bind_address=192.168.1.1        -o smtp_fallback_relay= #/etc/ Init.d/postfix restart //restart Postfix

Appendix:
If you have more than one IP, how do you set it?