SUMMARY, sendmail problem

From: fabrice cuq (
Date: Wed Aug 07 1991 - 21:22:42 CDT

original posting
I am having problem with (SunOS4.1.1)when I try to send mail
to places like, The mail bounces back
with the error << unknown host for mailer ddn>>. I suspect the problem is
in with the following line:
# if you are on the DDN, then comment-out both of the the lines above
# and use the following instead:
R$*<@$*.$+>$* $#ddn $@ $2.$3 $:$1<@$2.$3>$4 user@any.domain
This line can't handle mx records.
Any quick fix for this problem?(Sun doc on mail doesn't help much)


The solution given by several persons:

    * Move /usr/lib/sendmail to something like /usr/lib/sendmail.nomx
    * Move /usr/lib/ to /usr/lib/sendmail

Some added:
...You need to move or hardlink these files; a symlink will cause strange
and mysterious mail failures. The line from /etc/ you sent
should take care of things nicely.
...It won't work simply to run instead...
This was exactly what I was doing.

This solved the problem on the mailhost but created some others for the
subsidiary machines as I am exporting /usr/lib to them: unless I use
the same as on the mailhost I cannot send mail to the outside
world(because the "normal" sendmail should be running on these machines,
not the one with DDN).
I tried to copy the "normal" sendmail to /usr/local and run it from there
but it doesn't seem to work. Any idea?

Thanks to

and others for giving suggestions and solutions


This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:06:20 CDT