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    <title>topic Sendmail DNS in Operating System - HP-UX</title>
    <link>https://community.hpe.com/t5/operating-system-hp-ux/sendmail-dns/m-p/2494225#M805050</link>
    <description>Good morning,&lt;BR /&gt;I have recently upgraded my sendmail to a newer version. I have compiled my sendmail.cf and all the other required binaries. When I send a test email to the outside world I have no problems. When I send to my self sendmail looks up the alias file, finds my name but returns a DNS lookup failure. I have no problem with resolving ip's and names from any other apps. Host files, nsswitch.conf and resolv.conf files all seem ok. Is my problem in the sendmail.cf file? &lt;BR /&gt;Below is the test:&lt;BR /&gt;&lt;BR /&gt;# /usr/lib/sendmail -v -t &lt;BR /&gt;to: sears&lt;BR /&gt;test&lt;BR /&gt;test&lt;BR /&gt;sears... aliased to sears@charon.nlmoc.navy.mil&lt;BR /&gt;sears@charon.nlmoc.navy.mil... Deferred: Name server: charon.nlmoc.navy.mil.: host name lookup failure&lt;BR /&gt;&lt;BR /&gt;charon is my firewall&lt;BR /&gt;&lt;BR /&gt;thanks</description>
    <pubDate>Thu, 15 Feb 2001 15:11:45 GMT</pubDate>
    <dc:creator>robert sears_1</dc:creator>
    <dc:date>2001-02-15T15:11:45Z</dc:date>
    <item>
      <title>Sendmail DNS</title>
      <link>https://community.hpe.com/t5/operating-system-hp-ux/sendmail-dns/m-p/2494225#M805050</link>
      <description>Good morning,&lt;BR /&gt;I have recently upgraded my sendmail to a newer version. I have compiled my sendmail.cf and all the other required binaries. When I send a test email to the outside world I have no problems. When I send to my self sendmail looks up the alias file, finds my name but returns a DNS lookup failure. I have no problem with resolving ip's and names from any other apps. Host files, nsswitch.conf and resolv.conf files all seem ok. Is my problem in the sendmail.cf file? &lt;BR /&gt;Below is the test:&lt;BR /&gt;&lt;BR /&gt;# /usr/lib/sendmail -v -t &lt;BR /&gt;to: sears&lt;BR /&gt;test&lt;BR /&gt;test&lt;BR /&gt;sears... aliased to sears@charon.nlmoc.navy.mil&lt;BR /&gt;sears@charon.nlmoc.navy.mil... Deferred: Name server: charon.nlmoc.navy.mil.: host name lookup failure&lt;BR /&gt;&lt;BR /&gt;charon is my firewall&lt;BR /&gt;&lt;BR /&gt;thanks</description>
      <pubDate>Thu, 15 Feb 2001 15:11:45 GMT</pubDate>
      <guid>https://community.hpe.com/t5/operating-system-hp-ux/sendmail-dns/m-p/2494225#M805050</guid>
      <dc:creator>robert sears_1</dc:creator>
      <dc:date>2001-02-15T15:11:45Z</dc:date>
    </item>
    <item>
      <title>Re: Sendmail DNS</title>
      <link>https://community.hpe.com/t5/operating-system-hp-ux/sendmail-dns/m-p/2494226#M805051</link>
      <description>Hi,&lt;BR /&gt;&lt;BR /&gt;Have you also checked the MX record points to the correct domain in the DNS?&lt;BR /&gt;&lt;BR /&gt;Hope this helps. Regards.&lt;BR /&gt;&lt;BR /&gt;Steven Sim Kok Leong&lt;BR /&gt;Brainbench MVP for Unix Admin&lt;BR /&gt;&lt;A href="http://www.brainbench.com" target="_blank"&gt;http://www.brainbench.com&lt;/A&gt;</description>
      <pubDate>Thu, 15 Feb 2001 16:07:37 GMT</pubDate>
      <guid>https://community.hpe.com/t5/operating-system-hp-ux/sendmail-dns/m-p/2494226#M805051</guid>
      <dc:creator>Steven Sim Kok Leong</dc:creator>
      <dc:date>2001-02-15T16:07:37Z</dc:date>
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