Its Australian postal address is also the same as a submissions address for WikiLeaks.

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Often its efforts to trace families of account holders were thwarted as many accounts were opened only with a name and a postal address.

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But the site also accepts bank transfers to two accounts, one held by Commerzbank Kassel in Germany and the other by Landsbanki in Iceland, as well as postal donations to a mail address in Melbourne, Australia.

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The e-mail address included street name, town, county and full postal code.

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The postal group has said customers welcome the convenience of letters and parcels being left at a nearby address if they are not in.

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It may be more of a hassle for postal workers in other countries to send a letter back to the U.S. return address then to one in their own country.

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