Cable Forum - View Single Post - Can't send emails from ONE of the computers on the network(it's not a firewall issue)

caph · 07-10-2009, 23:19

Jawar, SMTP is a text based protocol so it's dead easy to test with Telnet (if you're on Vista you may need to install telnet via Programs and Features, Turn Windows Features On or Off, Telnet client). Drop to a command prompt and enter

telnet smtp.ntlworld.com 25

Tell us what error message you get. If you don't get an error then try and send an email to yourself by entering

HELO ntlworld.com<CR>
MAIL FROM:youremailaddress@ntlworld.com<CR>
RCPT TO:youremailaddress@ntlworld.com<CR>
DATA<CR>
test<CR>
.<CR>
<CR>
QUIT<CR>

Obviously don't type <CR>, hit return instead, and you can't use backspace so it's best to copy and paste each line so you don't make a mistake. If you get an error after entering one of those lines (an error will be any response which is not a 250) then let us know what it is.

07-10-2009, 23:19	#4
caph cf.geek Join Date: Jun 2007 Posts: 563	Re: Can't send emails from ONE of the computers on the network(it's not a firewall is Jawar, SMTP is a text based protocol so it's dead easy to test with Telnet (if you're on Vista you may need to install telnet via Programs and Features, Turn Windows Features On or Off, Telnet client). Drop to a command prompt and enter telnet smtp.ntlworld.com 25 Tell us what error message you get. If you don't get an error then try and send an email to yourself by entering HELO ntlworld.com<CR> MAIL FROM:youremailaddress@ntlworld.com<CR> RCPT TO:youremailaddress@ntlworld.com<CR> DATA<CR> test<CR> .<CR> <CR> QUIT<CR> Obviously don't type <CR>, hit return instead, and you can't use backspace so it's best to copy and paste each line so you don't make a mistake. If you get an error after entering one of those lines (an error will be any response which is not a 250) then let us know what it is.