You can talk directly to an SMTP server, for example to test that it
actually works for you. Here's a sample interaction. The commands
don't need to be uppercase -- they are here just to make the commands
$ telnet mailhost.act.togaware.com 25
Connected to mailhost.act.togaware.com.
Escape character is '^]'.
220 mailhost.act.togaware.com ESMTP Postfix
mail from: email@example.com
RCPT TO: firstname.lastname@example.org
354 End data with <CR><LF>.<CR><LF>
Subject: Testing manually through telnet to mailhost
This is the body
250 Ok: queued as 42DDE139919
Connection closed by foreign host.
The EHLO localhost command will list the capabilities of the server.
Copyright © 1995-2006 Graham.Williams@togaware.com