I have created new instance of postfix as postfix-2 using postmulti command ,I have edited the master.conf of instance postfix-2 to open port 855 for smtp.But still unable to see or connect to open port 855.
Please fins main.cf and master for main instance and postfix-1 in attachement.
here are the steps which i did to create 2nd instance.
# postmulti -e init
# postmulti -I postfix-2 -e create
My requirement is to tun bot instances separately eg. 1st instance runs on port 25 and 2nd runs on port 855
main-postfix.txt main-postfix.txt master-postfix.txt main-postfix-2.txt master-postfix-2.txt