Path: utzoo!utgpu!ugw.utcs.utoronto.ca!CUNYVM!IBMTCP-L Date: Thu, 8 Feb 90 12:45:25 EST Reply-To: IBM TCP/IP For VM List Sender: IBM TCP/IP For VM List From: Steve Blackley Subject: SMTP returns mail when NAMESRV down To: UofToronto LAN redistribution Message-ID: <90Feb8.230608est.58589@ugw.utcs.utoronto.ca> Newsgroups: list.ibmtcp-l Distribution: ut Approved: devnull@gpu.utcs.toronto.edu Recently we have setup our NAMESRV machine to send queries to a remote server for resolution. We modified our Mailer tables so mail with internet addresses would be sent to our SMTP rather than INTERBIT. This works fine until the remote server goes down, or something in between (DACU, Ethernet, etc.), in which case the mail gets returned by SMTP. When using a remote server with NAMESRV, can you configure SMTP to know the difference between (Unknown Address) and (Any Other Failure) ? Currently SMTP returns the mail when there is any failure. We would like SMTP to keep the Mail until the Server comes active, then try to resolve the address.