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Jul 082010

Test if local SMTP server is running


To test if a local SMTP server is running, you can try to ping the port 25

# echo -e "quit" | nc localhost 25
220 ubuntu ESMTP Postfix (Ubuntu)
221 2.0.0 Bye

If no SMTP server is listening

# echo -e "quit" | nc localhost 25
localhost.localdomain [] 25 (?) : Connection refused

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