Note that while telnetting to localhost works, telnetting to 127.0.0.1
doesn't:

  $ telnet localhost 10023
  Trying ::1...
  Connected to localhost.
  Escape character is '^]'.
  ^]q
  telnet> q
  Connection closed.

  $ telnet 127.0.0.1 10023
  Trying 127.0.0.1...
  telnet: Unable to connect to remote host: Connection refused

In case this is useful:

  $ grep localhost /etc/hosts
  127.0.0.1     localhost
  ::1     localhost ip6-localhost ip6-loopback

Attempts to force postgrey to listen on IPv4 by running

  postgrey --inet=127.0.0.1:10023

fail -- netstat also shows only the tcp6 line listening on ::1:10023, telnet to
127.0.0.1 continues to report Connection refused.

Marius Gedminas
-- 
A real friend isn't someone you use once and then throw away.
A real friend is someone you can use over and over again.


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