Pine alternative?

[Sean Murphy]

We have been using pine for years on our Sun Solaris box.  We are in the 
process of moving to FreeBSD.  I installed Pine from an updated ports 
collection and received a message about pine not being very secure.  Is 
anyone using an alternative to pine that can also read pine's folders 
and addresses?  I need it to be compatible as we still have many users 
with lots of data in pine.

Thanks