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    Throttling smtp on Mobile Devices

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    • S
      stemond
      last edited by

      Hey guys

      In our company we are using 45-50 mobile device and i use port forwarding (port 25) to send out email. Lately i see than are present brute force attacks against this service.
      Is there any kind of defence about this type of attack? If i set deny rules the firewall open always port  :(

      thanks !
      Stefano

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