telnet to exchange servers

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salmanryk
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Registered user
Posts: 15
Joined: Mon, 09 Jun 2014, 09:08

telnet to exchange servers

Post by salmanryk »

Any users of AD sitting in green and red zone can telnet(port 25,143) of exchange servers ,how can i block this beacuse if i block port mails communication also stopped.
By using telnet user sending mails with name of others.
GDsupporter
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Posts: 22
Joined: Mon, 09 Jun 2014, 17:32

Re: telnet to exchange servers

Post by GDsupporter »

Hi Salmanryk,

If you close those ports, user will not be able to send emails using the exchange server so the best way to go is disabling the telnet in the network computers using a GPO.

Other solution might be to upgrade all the operative systems to Windows 7 or above where the telnet application its disabled by default. Then, make sure your users are not allowed to install it and you should be able to prevent the use of the tool.

Best Regards

GDsupporter
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