On 20 Feb 2019, at 9:16 PM, b...@theworld.com wrote: > On February 20, 2019 at 15:29 br...@2mbit.com (Brielle Bruns) wrote: >> On 2/20/2019 1:22 PM, Matthew Black wrote: >>> Have you ever created a sendmail.cf without using M4? > > I've certainly maintained them, one usually started with whatever came > with the source distr or maybe you'd get someone to share something > with you to bang on. > > One reason sendmail.cf's seem so complicated is because sendmail was > designed to gateway and route between very different email systems. > ...
<chuckle> sendmail.cf was fun, but MMDF channels were so much more amusing – and rather necessary in order to deal with gatewaying BITNET, phonenet, DECNET, X25NET, uunp, and ondemand dialup-ip ppp and cslip domains in a semi-reliable manner on the relay.cs.net <http://relay.cs.net/> and relay2.cs.net <http://relay2.cs.net/> servers. It didn’t help that many sendmail.cf files in those days shipped relay.cs.net <http://relay.cs.net/> preset as their default smtp relay host… always made for large queues and careful editing. /John