[rt-devel] RT 2.1.63 and rt2-to-rt3 1.0

[mixo]

For "make test" after "make fixdeps" gives :
+++++++++++++++
...
ok 92 - Requiring 'Web.pm'
Can't locate Mail/SpamAssassin.pm in @INC (@INC contains: /opt/rt3/lib 
lib /usr/lib/perl5/5.6.1/i386-linux /usr/lib/perl5/5.6.1 
/usr/lib/perl5/site_perl/5.6.1/i386-linux /usr/lib/perl5/site_perl/5.6.1 
/usr/lib/perl5/site_perl/5.6.0/i386-linux /usr/lib/perl5/site_perl/5.6.0 
/usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.6.1/i386-linux 
/usr/lib/perl5/vendor_perl/5.6.1 /usr/lib/perl5/vendor_perl .) at 
SpamAssassin.pm line 27.
BEGIN failed--compilation aborted at SpamAssassin.pm line 27.
Compilation failed in require at lib/t/00smoke.t line 12.
1..92
+++++++++++++++

Is this module required or can I ignore it?