Using Telnet to Send Mail - Microsoft Consulting Services - CloudServus - United States
Sending email through telnet can be a useful tool when testing mail functionality, testing for open relays, or sending mail from admin scripts. This is something I don’t use often enough, so I’ve created this blog as a reminder.
www.cloudservus.com
I tried these steps as per the above blog.
But I am getting 501 5.5.4 Syntax: DATA.
This is the full syntax that I tried.
Code:
[root@duplicate-website ~]# telnet localhost 25
Trying ::1...
Connected to localhost.
Escape character is '^]'.
220 duplicate-website.com ESMTP Postfix
mail from: [email protected]
250 2.1.0 Ok
rcpt to: [email protected]
250 2.1.5 Ok
data my message sucks
501 5.5.4 Syntax: DATA
DATA my message sucks
501 5.5.4 Syntax: DATA
subject: my message sucks
221 2.7.0 Error: I can break rules, too. Goodbye.
Connection closed by foreign host.
