On Sun, 19 Apr 1992 13:01:07 EDT, Karl Signell <[log in to unmask]> wrote:
>
>>I entered 'TELNET TSO.UC.EDU 25', and 'VRFY DRECE' and got:
>>  250 </mail/dr/drece.CIX>
>>In response to 'VRFY LDBASE-L', I got:
>>  250 </tech/internet/ldbase-l.CIX>
>
>How do I logon to a strange node?
Since your IBM 3081 is directly-connected to the Internet, it's highly-likely
that your site installed software which allows you to exploit this connection.
One part of this software is the 'TELNET' program,
which allows you to connect to a port, e.g., 'port-25', on a remote node.
Note that 'port-25' is the port for exchanging E-mail.
The 'VRFY <userid>' command is part of this port-specific protocol.
 
>Can I use the VRFY command only on CMS machines?
No; on the other hand, the VRFY command usually produces the least-useful
information on CMS machines, and the most-useful information on UNIX machines.
On CMS systems, VRFY sometimes reports that all E-mail, including E-mail for
an invalid ID, will be forwarded to the local mailer!