1. Friends - automatically stores email from unknown senders in your 'pending' folder awaiting a reply to a confirmation message. This helps check they are a real person and not just a spam program. 2. Spam Filtering - automatically stores email that is suspected to be spam in your 'held' folder for 2 weeks. You can go to your 'held' folder to release messages wrongly identified as spam. 3. SPF filtering - This blocks most spam by rejecting emails where the sending machine is not the mail server for the domain used in the from address
1. Friends - On 2. SPF filtering - on or Spam Filtering - on