smtp telnet problem

[yrana2002]

i just learned how to log into the smtp server using telnet.
I telnet to smra.sancharnet.in 25,
after typing helo & entering mail from command,
i type rcpt to: something@yahoo.com and get this error always,
Relaying not allowed.

Can anyone tell me what this is?
Please don't reply by saying that what's the use!!

[champ_rock]

yeah i have heard that it is used to send anonymous mails........ but never came to know the exact procedure...???????

[Deep]

It means that sancharnet doesnt allow to send mails from any other domains using their server...

Check this page for more info: http://www.ordb.org/faq/#what_is

Deep