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I have configure a postfix mail server. Here I have problem of sending mail. After sending mail when i see maillog file if relay=none then mail get deferred and user not getting mail. But when relay= any ip or address then user getting mail. So what is the problem of relay=none. Could anybody help me about that. here i have add some maillog information.
That is a good step. Did you perform the telnet from a local machine on your LAN, the server itself, or from a remote location. This confirms that your server is listening on port 25 but doesn't tell us whether or not your ISP is allowing traffic on port 25. In order to prove this, you will need to perform a telnet mail test from a remote location.