When a user I have in jailshell is trying to test the correct syntax of his ~/.spamassassin/user_prefs file, he is running "spamassassin --lint -D", and getting an error because he cannot see "/etc/mail/spamassassin" (since he's in jailshell).

How can I make that directory visible to a jailshelled user? I can't imagine that this would be a security risk.