telnet smtp problems

[tcpman]

hi guys well i dont know i should ask it here but if its not the correct forum please close the topic

now i am trying to telnet a smtp server for leraning how its works but i have problem
i am trying this site for exmaple
http://temp-mail.org/
so it will make a temp email for you
now i am using this in cmd
telnet server.temp-mail.ru 25
then i type
helo server.temp-mail.ru
and then
MAIL FROM:test@yahoo.com
and at last
RCPT TO:fire@solvemail.info
now the problem is here when i get to rcpt to part i get a error
503 use mail before rcpt

i serach but nothing good find but in my seraches looks like the problem is for some setting disabled in there server

anyway i am trying to work with this so if the site has a problem is there any other site to test?i try few but most of them had problems

i am thinking if it's possible i run a smtp service in xampp for testing and learning

[foxidrive]

You will see that there is an error message generated by your first command. You can see what I type instead.

220 server.temp-mail.ru ESMTP Welcome to Temp Mail
helo server.temp-mail.ru
500 Unrecognized command
ehlo server.temp-mail.ru
250-server.temp-mail.ru Hello

[tcpman]

thank you my friend finally its working i even try and use qk smtp sever in my localhost but its stock in last level(sending email)

but i had been reading about the helo and ehlo and they said its not importent because its never cheaked or something

the helo and ehlo are they mean hello? becaause i think this is how smtp server know who we are i am correct?

[foxidrive]

This page mentions them - it's not my specialty.

http://support.microsoft.com/kb/153119