BoltHost offers two ways to control Spam:
Automatic Spam filtering with SpamAssassin
You should configure SpamAssassin from the DirectAdmin control panel.
Log into the control panel at http://www.YOUDOMAIN.co.nz/config
Your control panel login and password will have been sent to you in the welcome email when you joined.
Under the E-mail Management heading click "SpamAssassin setup" and change any options you want.
Save the changes to start SpamAssassin.
Manual Spam filtering
If SpamAssassin is not catching everything you can also create your own spam filters, to do this log into the DirectAdmin control panel and under Email Management click "SPAM Filters"
From here you can block specific email addresses, entire domains, emails containing certain words and you can turn on an automatic adult content filter.