Because most built-in spam filters use simple metrics to filter spam, they often falsely label items as spam or miss junk messages entirely. While this may seem like an effective solution, it's not always the best option. If a message is deemed as a threat, it gets moved into a “spam” or “junk” folder instead of your inbox with the rest of the emails you receive. For example, the Gmail spam filter uses Google’s database of malicious links, keyword searches, and blacklisted sender addresses to filter out potential junk messages as they hit your inbox. If you use any type of major email provider, chances are they offer some sort of built-in spam filter. For this reason, it’s important to understand each type of email spam filter so you can choose the one best suited for your personal or business needs. While each of these give you an effective email spam filter, not every solution works for every type of inbox. Most email clients, like Google and Microsoft, offer built-in spam filters, plus there are dozens of free and paid third-party email spam filter services out there, like Spam Titan and MailWasher. The Different Types Of Email Spam Filters ExplainedĪs you can imagine, there are multiple types of email spam filter services available to both individuals and businesses alike.

Similarly, if you send several messages from the same sender into your junk folder, the email spam filter software will start flagging all messages from that sender as spam. For example, if you mark a specific message as spam, the spam filter will then add content from that message to its spam filtering going forward. A “passing” score means the message can pass on into your inbox, whereas a “failing” score sends the message into a designated junk folder.Īdditionally, some spam filters actually learn from you.

Spam filtering software scans the sender’s address, subject line, attachments, and body of the email to determine if a message is “safe” or “suspicious.” Based on what it finds, your email spam filter will assign each message with a spam score. These programs can work as part of your inbox, or as an independent program hosted in the cloud or on your device.

Try it FREE What Is An Email Spam Filter And How Does It Work?Įmail spam filters are specific types of software designed to analyze messages before they enter your inbox.

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