milter wants erase sendmail

[Andrey S. Rybak]

hello!
i use bundle sendmail and milter greylist on my e-mail freebsd server.
every time I want upgrade milter-greylist it wants install sendmail 
port. But I use sendmail+tls+sasl2 port.
There is conflict. I should deinstall sendmail+tls+sasl, install 
milter-greylist, deinstall sendmail and then install sendmail+tls+sasl2. 
Every time doing so I think something going not elegant. Is there more 
simple path to upgrade milter-greylist?