How to test SMTP functionality ( Telnet ) in a Windows server

First of all , you should have telnet installed in your server/system from add/remove features of windows control panel to test smtp functionality. You can do like below to test it through command prompt-

telnet yourmaildomain.ext 25

helo yourmaildomain.ext

mail from: sendermail@domain.ext

rcpt to: receievermail@domain.ext

data

subject : your subject followed by twice enter key

Your body of email followed by .

quit

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