* Masoumeh Izadi <iz...@iranet.ir>: > Hi; > We have a postfix Email server . when someone telnet to port 25 on our > server, it is possible to send email from any ID user1@ anydomain to any > user2@ mydomain
Yes, just like I can send you an email. How am I supposed to authenticate against your server? > The question is that: Is there any solution to prevent this matter or > somehow make postfix to authenticate the users telneting the server > directly? Yes, but then nobody could send you email anymore. > By the way, our email server is not an open relay server. Sending mail to your own domain is not relaying. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
