Starting spamd: Can’t locate Cpanel/SpamAssassinSandBox.pm in @INC (@INC contains: /usr/lib/perl5/5.8.8/i686-linux) at /usr/bin/spamd line XX. BEGIN failed–compilation aborted at /usr/bin/spamd line XX.
that means you need to re-install SpamAssassin. SSH to your server and run the following commands:
/scripts/perlinstaller --force Mail::SpamAssassin
Then restart Exim to make sure you don't get the same error message above. If you do, then submit a ticket and we'll take care of it for you.