smtp_bind_address and postfix log format

[jalel...@gmail.com]

Hello

We have setup postfix using smtp_bind_address with 100 ips having below configuration

#--------------------------------------------

#ip=10.11.17.13 host=multi328.postfix.example.com

10.11.17.13:25 inet n - n - 500 smtpd
-o content_filter=dksign:[127.0.0.1]:10027
-o myhostname=multi328.postfix.example.com
-o syslog_name=multi328

multi328 unix - - n - 500 smtp
-o smtp_bind_address=10.11.17.13
-o smtp_helo_name=multi328.postfix.example.com
-o syslog_name=multi328
-o transport_maps=hash:/etc/postfix/rlt/transport328
#--------------------------------------------


below given questions are regards to smtp_bind_address with 100 Ips


(1) how can we set different queue for each virtual smtp_bind_address ?
(2) we don't need to use DKIM/DKIMPROXY or OPENDKIM or any other milter for signing mails .is there any other way to sign mail without using milter in postfix ?

(3) postfix can open maximum 1000 out connection how can i distribute 10 connection to each virtual postfix mta ?

(4) we are using system having specs with 32 GB RAM, 24 core processor, SSD with 6GBPS sata port and centos6 64bit for mta (postfix). ulimit -n 102400 and ulimit -u 10240 but postfix can not use complete resources "default_process_limit = 5000" is added in main.cf.

let me know what changes require for utilizing complete resources and which help in make system faster and better for mail

(5) don't want to use sender_transport or random-transport.pl with smtp_bind_address. how can we distributes mails based on helo or ehlo

(6) how can i add header tag "X-postfix-BounceCategory: reason" for NDR mails.

(7) mail stats tool for each virtual postfix mta and multiple server, kindly suggest us

(8) Is there any puppet module present for smtp_bind_address ?

(9) how can we set smtp_header_checks based on mail sender address ?

(10) Can we print specific header parameters like (from ,subject,client-ID,sender,To) in single line format into log file (maillog)?

(11) Please tell me which other parameters we can use with smtp_bind_address

(12) how to change maillog format .like below single line log

Apr 8 07:14:58 multi1 multi328/smtp[27657]: 3lMNL92vNJz1r2cR:warning: header Subject: welcome to postfix from client1.application.com[10.10.10.10]; from=<heidio.43E...@multi53.postfix.example.com>, to=<ab...@aol.com>, proto=SMTP, relay=mailin-01.mx.aol.com[64.12.91.195]:25, delay=1.6, delays=0.18/0.03/0.25/1.1, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 0140C70000093)

Thank You
Anil Jalela