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Old 11-13-2003, 02:39 AM   #1
ziggie216
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Registered: Oct 2003
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how can I make postfix more secure?


right now it seems like anyone can telnet into my server and send out. Is there a way so it will require authentication? or maybe only a certain range of ip can connect?
 
Old 12-05-2003, 12:10 AM   #2
ugob
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Yes. You should only allow your internal network to connect. By default, it is configured that way. To test out, try to connect from the internet and try to send an e-mail to a domain that is not hosted on this machine. You should get a relay_denied error. If it relays, you must do something to prevent relaying. See /etc/postfix/main.cf
 
  


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