What is a quick test of a mail server or SMTP server?

Updated -

Using Mailx client

  • Use mailx (or mail) command to send a test email and check the client debug logs:

    # echo "Ignore. It's a test email" | mailx -v -s "Test Mail" <recipient>
    
  • Replace the recipient with actual email id.

Using Telnet

  • In debugging email problems, a goo...

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