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Internet service providers

To find generic instructions on how to configure port forwarding, see Main configuration box

A "no" may cause problems for using your server or may require you to make additional configuration changes. Status in brackets indicates the default behavior.

UK

Service provider Box (modem/router) uPnP available Port 25 openable Hairpinning Customizable reverse DNS Fix IP
BT Internet Yes - Yes - - No
Virgin Media Yes - - - No No
ZEN Internet Yes - Yes - Yes Yes
PlusNet Yes Yes Yes No Yes, if you raise a ticket Small one off Charge

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