[comp.unix.sysv386] ISC 2.2.1 tcp/ip mail problem

krp@compel.UUCP (Klaus Roy Poulsen) (03/12/91)

After a recent update from ISC 2.0.2 to ISC 2.2.1 the following problem has
emerged:
  When ( trying ) sending mail via TCP/IP connections, an immediate return 
with the following error message occurs:

    550 xx@yy.zz... Host unknown

regardless of the actual host, known or unknown.

Further information:
  It did work under 2.0.2 with the same sendmail.cf, hosts etc. files.

  Other connections, i.e. rlogin telnet rcp ...., has no problems
  reaching the other machines on the net.

  Receiving mail from the other machines works ok.

  No nameserver is active ( and none is specified ).

  sendmail.cf is configured to send all mail to unknown hosts to a
  given known (gateway) host. Whether the destination specify an
  unknown host, a known host or the gateway host doesn't change the
  result ... Host unknown.

  Software configuration:
  ISC 2.2.1
  TCP/IP 1.2
  NFS 2.1


Is this a known problem, bug, feature, configuration option or ....  , and
what to do about it. Any clues?

					     Klaus

--
Klaus Roy-Poulsen   .  PHONE + 45 36 72 33 00  .  E-mail:  krp@compel.dk
Compel A/S          .  FAX   + 45 36 72 43 00  .  
Copenhagen, Denmark

haugen@bulus3bma.com (John M. Haugen) (03/13/91)

In article <1405@compel.UUCP>, krp@compel.UUCP (Klaus Roy Poulsen) writes:
>   When ( trying ) sending mail via TCP/IP connections, an immediate return 
> with the following error message occurs:
> 
>     550 xx@yy.zz... Host unknown
> 
> regardless of the actual host, known or unknown.

In my case, it is the gateway that is having the problem.  My error message
is very similar to the one above.  It is almost as if sendmail is treating
"xx@yy.zz" as a host name.

> Klaus Roy-Poulsen   .  PHONE + 45 36 72 33 00  .  E-mail:  krp@compel.dk
> Compel A/S          .  FAX   + 45 36 72 43 00  .  
> Copenhagen, Denmark

John M. Haugen              Domain:  haugen@bma.com
Bull Micral of America      UUCP:    ...!uunet!bulus3!haugen
900 Long Lake Road          ATT:  +1-612-633-5660
New Brighton, MN  55112-6400