[exim] Testing sending hosts open ports

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Author: Marc Perkel
Date:  
To: exim-users
Subject: [exim] Testing sending hosts open ports
Just wondering how to do this. I'd like to test to see if the sending
host at port 25 open. Would this be a good way to detect spammers? Would
a host sending email to my host not have port 25 open to receive email?



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