Since most people find false-positives (where we mistakenly think a real email is spam) are much worse than false-negatives (where a spam message slips through to your inbox), we are reasonably conservative with our cut-off level.įor ease of use, we provide three levels in the Settings → Spam Protection screen: Basic, Standard and Aggressive, which adjust how we treat spam. Report spam and non-spam via an email clientĮvery email that arrives at your mailbox is checked against a list of criteria and given a score to show how likely we think the message is to be spam.With a little help from you, you can virtually eliminate spam from your Inbox. Fastmail uses many tools that help catch and stop as much spam as possible.