Tuesday, August 18, 2009

Telnet to Mail

Here is a way to telnet to mail server.

telnet 25
Connected to et24 (
Escape character is '^]'.
220 mail.embeddedteam.co m ESMTP Postfix
250 mail.embeddedteam.co m
mail from:
250 Ok
rcpt to:
250 Ok
354 End data with .

hello world
250 Ok: queued as 2D40A7D29

There are many options with this type of checking
You can give ehlo instead of helo and the system will show all authentication available.

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