Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!spool.mu.edu!samsung!think.com!farber!ellozy
From: ellozy@farber.harvard.edu (Mohamed Ellozy)
Newsgroups: comp.mail.sendmail
Subject: Problem with sendmail 5.65 with unqualified names
Message-ID: <1991Jun24.231248.305@Think.COM>
Date: 24 Jun 91 23:12:48 GMT
Sender: news@Think.COM
Organization: Dana-Farber Cancer Institute
Lines: 36
Originator: ellozy@farber

I am trying to upgrade to sendmail 5.65 with the Berkeley config files
(I have been using a homebrew config file that has fallen behind the
times).

The host I am testing on is in the dfci.harvard.edu subdomain, and must
be able to send mail to user@host when host is in the upper level
harvard.edu domain.  Must means that users require it.

Though I am running Ultrix 4.1, I have compiled sendmail with the 4.8.3
resolver library.  In my /etc/resolv.conf I have search set to:

	search dfci.harvard.edu harvard.edu other.do.main

So for mail to user@host the resolver should first try
host.dfci.harvard.edu and, if that fails, host.harvard.edu, then
host.other.do.main.

This seems to work well with one exception.  When I send mail to a host
in the harvard.edu domain, using the unqualified name, mail gets
delivered fine, and all seems to indicate that it was correctly
processed.  Specifically, sendmail -bt shows user@host being resolved
to user@host.harvard.edu.  The sendmail dialogue (mail -v) shows a
correct address.  The message, however, has a header of:

	To: user@host.dfci.harvard.edu.

The same occurrs with the cc: line.  That suggests that in some place
the domain name is being appended to the unqualified host name, rather
than calling the resolver to canonicalize.  I cannot find any place
where $D is appended whithout a previous attempt (usually two lines
higher) to use the resolver.  It happens every time, so cannot be a
temporary slow name server response.

Any help will be much appreciated.

Mohamed