Re: Mail Relay / Open Mail Replay

[Michal Zalewski <lcamtuf () coredump cx>]

> Suppose there is Mail server having port 25 open xyz.com
> an attacker login on Mail server  through telnet and then try to send the
> mail but the he can only send a mail within the xyz company not outside
> ..so this will be consider as Vulnerability or not

Yes. Thankfully, this can be resolved by removing the legacy
/usr/bin/telnet program from the originating system.

/mzi

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