[rt-users] problem with russian

[Igor]

Hello,

I have FreeBSD-5.2.1R+rt-3.0.11+apache-1.3.31+perl-5.8.4+mod_perl-1.3.31

To use rt-mailgate script I've put in  /etc/aliases 
rt: "|/usr/local/rt3/bin/rt-mailgate --queue queuename --action correspond --url
http://rt.host.name/"

Everything works great fo english writing users, but I've got a problem when
try to send russian written e-mail (KOI-R or windows-1251)
There are ??? signs instead russian letters in ticket's e-mail confirmation and
the same ??? signs when I try to look at new created ticket via http.

How can I solve this ?

Thanks in advance
Igor