strange mail behavior

[Yuri Csapo <ycsapo@xxxxxxxxxxxxxxxxxx>]

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Hi all, I have a number of identical virtual Linux machines (All RedHat Enterprise AS release 4
(Nahant Update 8)) and on one of them, invoking the 'mail' command generates an error, although the
command itself gets executed correctly. This is what I mean:

[root@overlook mail]# ls|mail -s "test" ycsapo@xxxxxxxxx
Unknown command: ""

But I do receive the message. To compare, here's the same thing on one of the other boxes:

[root@trailhead ycsapo]# ls|mail -s "test" ycsapo@xxxxxxxxx
Null message body; hope that's ok

And I also receive the message. By the way, I see the same thing even if I invoke mail all by itself
with no params.

I can't find a difference in configuration between the boxes. Any ideas where to look?

Thanks

Yuri

- -- 
Yuri Csapo
Academic Computing & Networking
Colorado School of Mines
CT-256
Phone:  (303) 273-3503
Fax:      (303) 273-3475
Email:   ycsapo@xxxxxxxxx

Please use the following link to open a service request:
http://helpdesk.mines.edu
===========================================
The idea that an arbitrary human should be able to properly use a given tool
without training or understanding is even more wrong for computing than it is
for other tools (e.g. automobiles, airplanes, guns, power saws).
- -- Doug Gwyn
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