Path: utzoo!attcan!uunet!husc6!mailrus!eecae!cps3xx!rang
From: rang@cpsin3.cps.msu.edu (Anton Rang)
Newsgroups: comp.mail.sendmail
Subject: Problems with sendmail, name service, and yellow pages
Message-ID: <1070@cps3xx.UUCP>
Date: 14 Nov 88 07:54:31 GMT
Sender: usenet@cps3xx.UUCP
Reply-To: rang@cpswh.cps.msu.edu (Anton Rang)
Organization: Michigan State University, Computer Science Dept.
Lines: 18

Every once in a while I see the following scenario:

  1.  Mail is sent to some user (user@host.domain.domain).
  2.  Sendmail appears to hang for a while, way down in yp_match (I think).
  3.  Eventually, it times out (or something).  The message bounces, with
      the error "Deferred: address already in use" (or something like that.)

At this point, the message will go through if I try sending it again,
presumably because the information is now sitting in the local name
service cache.  I assume there is some sort of timing (?) problem.

  Can anyone explain this?  Even better, is there a fix?  I'm using
Sendmail 5.59 and Bind 4.8 (SunOS 3.4, YPSERV patch from Sun).

+---------------------------+------------------------+----------------------+
| Anton Rang (grad student) | "UNIX: Just Say No!"   | "Do worry...be SAD!" |
| Michigan State University | rang@cpswh.cps.msu.edu |                      |
+---------------------------+------------------------+----------------------+