Cleaning port config options

[Robert Fitzpatrick]

I was installing the mail/dspam port and the selection of options
appeared for configuration, then after selecting, the configuration
stopped with an error that I had selected too many back-end options. I
did 'make distclean' and 'make clean', but the options list will not
appear again for me to alter the configuration options. How do I do
this?

-- 
Robert