Can I compile sendmail simply through the ports collection?

[Aflatoon Aflatooni]

Hi,
I was wondering if I can simply recompile sendmail from the ports collection for 
FreeBSD 7.1 server.
I need to recompile the sendmail on the server to add Cyrus SASL2 support. The 
instructions on FreeBSD point to src /usr/src/usr.sbin/sendmail which doesn't 
exist and I was wondering if I could simply recompile using the ports 
collection.

Here is the instructions about compiling the Cyrus sasl2 support:

http://www.freebsd.org/doc/handbook/smtp-auth.html

Thanks