[CentOS] sendmail routing

[Christopher Chan]

> Sorry, last I checked, there is no sender-based routing support in 
> sendmail. You cannot even try to create rulesets to get that.
>
>   
Looks like it is my turn to eat humble pie. You will need to rebuild 
sendmail.cf after applying this hack.

http://www.cs.niu.edu/~rickert/cf/hack/sender_based_routing.m4


I have not tested it let alone tried on 8.14.x

I cannot believe the file is dated 2004. Ah well, I got rid of sendmail 
and replaced it with postfix in 2003 while I was still a mail admin. I 
must bow to the real sendmail bigots.