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How can I test an SMTP server via telnet ?

Onderwerp: SMTP

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telnet 25
helo me
mail from:[email protected]      
rcpt to:[email protected]      
This is a test      

Here is yet another example with an image to show the whole process.


That is sufficient to send a test message on most mail servers.  Telnet is a powerful tool for testing email and really comes in handy for isolating mail related issues.

Alternatively, use on online tool to do this