FreeBSD 8: dovecot postfix spamassassin

Error a el momento de instalar maia:

===> Compressing manual pages for p5-Mail-DomainKeys-1.0
===> Registering installation for p5-Mail-DomainKeys-1.0
===> Returning to build of maia-1.0.2a_3
===> maia-1.0.2a_3 depends on file: /usr/local/lib/perl5/site_perl/5.10.1/Mail /SPF/Query.pm - not found
===> Verifying install for /usr/local/lib/perl5/site_perl/5.10.1/Mail/SPF/Que ry.pm in /usr/ports/mail/p5-Mail-SPF-Query

===> p5-Mail-SPF-Query-1.999.1 conflicts with installed package(s):
p5-Mail-SPF-2.007

They install files into the same place.
Please remove them first with pkg_delete(1).
*** Error code 1

Stop in /usr/ports/mail/p5-Mail-SPF-Query.
*** Error code 1

Stop in /usr/ports/security/maia.
*** Error code 1

Stop in /usr/ports/security/maia.