When I print to \\server\ifax, it can return a page for me to input fax address. But I cannot find any fax paper that I pointed to?

Ans.: You should change the Login Suffix ( in GUI mode ) and the Default Email Address of the fax administrator in the file /etc/ifax/ifax.conf

e.g. If Dafault Email Address of the fax administrator is admin@xxxxx.com.hk, the Login Suffix should set to xxxxx.com.hk .