Path: utzoo!attcan!uunet!zaphod.mps.ohio-state.edu!julius.cs.uiuc.edu!apple!agate!shelby!msi.umn.edu!noc.MR.NET!uc!shamash!rrr
From: rrr@u02.svl.cdc.com (Rich Ragan)
Newsgroups: comp.mail.sendmail
Subject: Writing a mailer (?'s)
Message-ID: <28605@shamash.cdc.com>
Date: 13 Nov 90 00:04:04 GMT
Sender: news@shamash.cdc.com
Reply-To: rrr@svl.cdc.com
Organization: Control Data Corporation, Silicon Valley Operations
Lines: 19

I am writing a mailer to act as a gateway between mail on
unix and a proprietary mail system. I have changed the
sendmail.cf file so that properly addressed mail get sent
to my mailer by sendmail. My questions revolve around
error conditions.
  1) How can I stave off sendmail calling my mailer
     if it can only send have one connection at a time
     to the proprietary system?
  2) How do I stave it off if the proprietary system
     is down? Who hangs onto the mail until it can
     be sent?
  3) How should I return errors in outbound mail.
     I'm currently mailing them back to the sender.
  4) anything else a well-behaved mailer should do
     in polite society.
Thanks in advance
--
Richard R. Ragan  rrr@svl.cdc.com  (408) 496-4340 
Control Data Corporation--Silicon Valley Operations