North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: fixing insecure email infrastructure (was: Re: [eweek article]Window of "anonymity" when domain exists, whois not updated yet)
> 0) for the love of God, Montresor, just block port 25 outbound already. What is wrong with dedicating port 25 to server to server communication with some means of authentication (DNS?) to ensure that it is indeed a vaild mail server. Mail clients should be using port 587 to submit messages to their local MTA. Adi
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