Sendmail custom build with support for SPF, DomainKeys, DKIM, security, authenticated login only and IP rotation. - repost

Project Description:
Need to install Sendmail 8.14.5 with the following:

Turn src. into SRC.RPM enabling all possible features to later rebuild on any RHLE distro (centos..)

Enable procedures and mechanism to setup authentication login for POP/IMAP/SMTP.

Secure system/installation to avoid openrelays and any security breach.

Enable SPF, SRS, DomainKeys, DKIM and DMARC (last one if possible) to SINGOUT all sent emails.

IP Rotation system to achieve:

Random rotation
Given sequence rotation
Time rotation

Rotation must be native and not use iptables.

Detalied instructions on how to replicate every step in detalied and a SCRIPT to do automatically installation; do this is REQUIRED.



Thanks.