Example without authentication
telnet mail.example.com 25
ehlo mail.example.com
mail from: email@example.com
rcpt to: abc@example.com
data
Subject: This a a test email
##Send a blank line to separate the headers from the message body
This is just a test to see if I can SMTP auth from my PC.
.Example with SMTP authentication
telnet mail.example.com 25
ehlo mail.example.com
auth login
mail from: email@example.com
rcpt to: abc@example.com
data
Subject: This a a test email
# Send a blank line to separate the headers from the message body.
This is just a test to see if I can SMTP auth from my PC.
.
