Ed,
    No, you do not need a local host file. First check to see if you can
resolve any addresses at all. (You can alternatively use the NSLOOKUP
command to check host resolution) If you cannot, make sure you have a
valid TCPIP DATA file accessed by the SMTP server. Usually you will have
another host in your domain function as a dns server - make sure it is
defined with the NSINTERADDR parm.

Denny Burch 

z/VM Tech Support
DISA DECC Mechanicsburg
717 605-1181
(dsn) 430-1181

 

-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Edward M. Martin
Sent: Tuesday, September 25, 2007 17:23
To: IBMVM@LISTSERV.UARK.EDU
Subject: SMTP host Unknown

Hello Everyone,

        I know that I had this problem before on z/VM 4.3 but I can't
find the notes.

        I am configuring SMTP on a z/VM 5.3 system.

        I get 

ULTRAQUEST.AULTMAN.COM unable to deliver following mail to recipient(s):

    <[EMAIL PROTECTED]>                                               

550 Host 'aultman.com' Unknown                                          

        from a 

        SENDFILE PROFILE EXEC A [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>  ( smtp

        I can not ping AULTMAN.COM but can ping mail.aultman.com.

        DO I need to have a local host file?

Ed Martin
Aultman Health Foundation
330-588-4723
[EMAIL PROTECTED]
ext. 40441

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