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.

Switzerland

Most of non business IP provided by ISP are blacklisted.

Service provider Box (modem/router) uPnP available Port 25 openable Hairpinning Customizable reverse DNS Fix IP
Sunrise Multiple No Yes No - -
Swisscom Multiple No Yes No No No
VTX Multiple No Yes No - -

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