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From: rickert@mp.cs.niu.edu (Neil Rickert)
Newsgroups: comp.mail.sendmail,comp.bugs.4bsd
Subject: Re: Local Configuration Error
Keywords: sendmail, mx, bind
Message-ID: <1990Sep19.002139.32095@mp.cs.niu.edu>
Date: 19 Sep 90 00:21:39 GMT
References: <gord.653697425@menaik>
Distribution: comp
Organization: Northern Illinois University
Lines: 55

In article <gord.653697425@menaik> gord@cs.UAlberta.CA (Gord Urquhart) writes:
>
>  I am running sendmail 5.61 in conjunction with Bind. Everything works 
>except for machines that are MX'ed to the local host. If there are 2 MX 
>records for a host with the prefered one being the local host then in 

 This looks like a problem for which I posted a patch several weeks ago.
Since it is a simple patch, I will repeat it.

 What happens is this:
   With two or more MX records, the behavior is dependent on the order
in which the MX records are retrieved from the name server.  If the
best preference/local address entry comes first, it is rejected and
so are all other MX records.  There is then a lookup for an A-record
(in deliver.c).  But if the best preference does not come first, after
all MX records have been stored they are sorted.  In this case if the
best preference is local a configuration error is declared.

 Clearly the dependence on the order makes no sense.  Either it should
always be a configuration error, or it should always result in a search
for an A-record.  Since the second choice is more useful, the patch
implements it.

 Note: the patch is for sendmail 5.64, but there is probably very
       little difference in the code.

*** /tmp/,RCSt1025390	Thu Sep 13 14:39:07 1990
--- domain.c	Fri Aug 10 16:12:53 1990
***************
*** 161,170 ****
  			 * the best choice left, we should have realized
  			 * awhile ago that this was a local delivery.
  			 */
! 			if (i == 0) {
! 				*rcode = EX_CONFIG;
! 				return(-1);
! 			}
  			nmx = i;
  			break;
  		}
--- 161,168 ----
  			 * the best choice left, we should have realized
  			 * awhile ago that this was a local delivery.
  			 */
! 			if (i == 0)
! 				goto punt;
  			nmx = i;
  			break;
  		}

-- 
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
  Neil W. Rickert, Computer Science               <rickert@cs.niu.edu>
  Northern Illinois Univ.
  DeKalb, IL 60115.                                  +1-815-753-6940