From owner-freebsd-hackers  Sat May  3 17:29:33 1997
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To: Frank Seltzer <frankd@yoda.fdt.net>
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Subject: Re: Stable build failing 
In-reply-to: Your message of "Sat, 03 May 1997 20:01:02 EDT."
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Date: Sat, 03 May 1997 17:29:59 -0700
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From: "Jordan K. Hubbard" <jkh@time.cdrom.com>
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> Should I just wait? If not, how do I install it?

Heh...  Pretty easy, really:

grep mail /usr/src/etc/group

Now add this line to your /etc/group.