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From: smart@mel.dit.csiro.au (Robert Smart)
Newsgroups: comp.mail.sendmail
Subject: Re: $h in IPC mailer line: meaning/use
Message-ID: <1990Jul13.050028.25681@mel.dit.csiro.au>
Date: 13 Jul 90 05:00:28 GMT
References: <1990Jul12.040301.21074@mel.dit.csiro.au>
Organization: CSIRO DIT (Melb.)
Lines: 46

>In an MX mailer (I have only looked in 5.64/IDA/NIU) in deliver.c in
>openmailer, if mailer is [IPC] then it seems to ignore the parameter.
>So if your M line ends "A=IPC $h" the $h is ignored. It actually assigns
>the value to CurHostName but that value is always overwritten by MX
>records.
>
>I have taken the $h out of that line with no apparent ill affects 
>                   So now I would like to change deliver.c so that it
>will only use MX records if there is no $h parameter. If there is a $h
>parameter it will ignore the MXes and send the mail where I specify.

I've done it and it seems to work

*** deliver.c	Fri Jul 13 14:29:28 1990
--- deliver.c~	Fri Jul 13 14:24:46 1990
***************
*** 802,813 ****
  		register int i, j;
  		register u_short port;
  
- #ifdef OPTMX
- 		if (pvp[1] != NULL){
- 			MxHosts[0] = pvp[1];
- 			Nmx = 1;
- 		}
- #endif OPTMX
  		CurHostName = pvp[1];
  		if (!clever)
  			syserr("non-clever IPC");
--- 802,807 ----

Then M lines look like this

# TCP-A uses MX
MTCP-A, P=[IPC], F=CDFMXhnmu, E=\r\n, R=12, S=12, A=IPC
# TCP-T requires a destination to which mail is sent
MTCP-T, P=[IPC], F=CDFMXhnmu, E=\r\n, R=12, S=12, A=IPC $h

Perhaps this isn't quite the best way to implement it?

We need some more organization in collecting sendmail patches. I suggest
we start two organizations, one called Sendmail International and the other
called the Open Sendmail Foundation and see if this will lead to better
standardization :-).

Bob Smart <smart@mel.dit.csiro.au>