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    Question Block 25 Port allow 587 port instead on Plesk

    25 port is used by SMTP server for clear text emailing as far as I know(It uses this port for listening and sen. Please correct me if I am wrong. I want just the postfix to use encrypted communication way. And I also tried to establish telnet connection on this port. It accepts this command but...
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    Question Block 25 Port allow 587 port instead on Plesk

    Hello Peter, you are right. It sends email from our exchange server by using smtp 25 port. So we do not want to block it. We want to make it just secure port. In this case our server is open for the threats. How can we solve this problem instead of blocking 25 port?
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    Question Block 25 Port allow 587 port instead on Plesk

    Extra info about installed Email server on ubuntu server 20
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    Question Block 25 Port allow 587 port instead on Plesk

    Hello guys, I want the SMTP server to use the 587 port instead 25. So for security reason we want to use secure connection for outgoing emails. I already read this topic, as well. https://talk.plesk.com/threads/change-default-smtp-port-in-plesk.367784/ On my main.cf file there is no such as...
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