Newly arrived anti-spam service Aliencamel, which I mentioned in an earlier column, tell me they’ve beefed up their service by ‘double scanning’ every email with virus engines from RAV and Kapersky. Aliencamel’s spam technology uses server-based whitelists — allowing email from such addresses to get through — and blacklists — blocking out ‘bad’ email senders — and a spam-filter ranking system from SpamAssassin, letting you select what emails actually reach your inbox. It’s definitely worth a try. I’m still using POP File which adopts a different approach and is free, but some users have found it fiddly to set up with some email accounts. Aliencamel cost $16 for a half-year subscription.