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From: perand@nada.kth.se (Per Andersson)
Newsgroups: comp.mail.misc
Subject: Re: How to use IP addresses in mail
Message-ID: <2494@draken.nada.kth.se>
Date: 7 Dec 89 21:42:34 GMT
References: <8911292029.AA13662@jvncf.csc.org> <1407@ulmo1.mt.luth.se>
Reply-To: perand@nada.kth.se (Per Andersson)
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 22

In article <1407@ulmo1.mt.luth.se> Sven-Ove Westberg <sow@cad.luth.se> writes:
>
>/usr/lib/sendmail user@[128.121.51.2]
>To: user@host
>From: me
>Subject: Test
>
>This is a test message
>^D

This does not always work, depending on the sendmail configuration, and how
your system admins thought it ought to work. If I try this, it will be shipped
to our central mail-machine for our domain, who will resolve the IP-number
to a name, and lookup that name. In my case it doesn't exist so I get a 
'failed mail' back. Also using tcsh, I had to use 'user@[xxx.yyy.zzz.ccc'.

Per
-- 
Per Andersson
Royal Institute of Technology, Stockholm, Sweden
perand@admin.kth.se, @nada.kth.se 
or perhaps {backbone}!sunic!draken!perand