Subject: sendmail Failure HELP!!! "ioctl system call"???

From: [email-masked] (Dan LeGate)
Date: Thu, 08 Aug 1996 03:39:42 GMT

I'm having trouble sending only certain people mail.  It's strange.  I
can send mail about 95% of the time just fine.  But there are a few
domains that seem to cause a problem: like prodigy.com and juno.com.
Anyway, what happens is when I send the message, IMMEDIATELY (not in a
second or two, but right away), MY system gives me a MAILER-DAEMON.
This makes me believe it's not the receiving host, but something wrong
with my system's configuration?  Does that sound right?

Here's what I get back in the MAILER-DAEMON message:

Date: Wed, 7 Aug 1996 23:08:09 -0700
From: Mail Delivery Subsystem <MAILER-DAEMON>
Subject: Returned mail: Host unknown
 
  --- The transcript of the session follows ---
421 juno.com.tcp... Deferred: A specified file does not support the
ioctl system call.
550 "John C. Doe" <[email-masked]>... Host unknown: A specified file
does not support the ioctl system call.
  --- The unsent message follows ---

I'm on an AIX 3.2.5 machine.  Is there anything I can do to "fix" this
problem on my end?  Any help or information is greatly appreciated.

Dan

PS - if replying publicly, can you also CC a copy to my email address?
And vice versa: if replying privately, please CC a copy publicly so
all can benefit from your responses.  Thanks!

---

From: [email-masked] (Stephen C Woods)
Date: Thu, 8 Aug 1996 20:35:11 GMT

>with my system's configuration?  Does that sound right?

You are not processing MX records.

   In /etc/sendmail.cf there is a line that contains the string #OK
   (That is Oscar Kilo, not ZERO KILO)  read the comments
   on the preceding dozen or so lines.   Then:

   what you want is is a line that says:

OK MX

   or

OK ALL

Once you've done that don't forget to
   refresh -s sendmail
-- 
-----
Stephen C. Woods; UCLA SEASNET; 2567 Boelter hall; LA CA 90024; (310)-825-8614
Finger for public key [email-masked],Internet mail:[email-masked]