Spam is a major issue Safety goggles manufacturers in business organizations

Spam is a major issue Safety goggles manufacturers in business organizations as they flood inboxes with useless messages bringing the overall productivity of employees. Other Filters

Apart from content based and list based filters, there are many other effective spam filtering methods. Collaborative filter is another effective technique where inputs from millions of email users are collected to design the particular spam filter. The mail exchange record includes all of these different filters to offer a comprehensive spam filtering service. Blacklist filters, real-time blackhole lists, whitelist and gray lists are the most popular list based spam filtering techniques. Spam messages also consume a lot of resources from email servers and contribute to server outage, memory shortage and power outages.

What is Spam Filtering? How Does it Work?

Email filtering is the most effective way to keep spam at bay and the filtering is quite literally done with the help of many filters. List Based Filters

These spam filters identify and block spam messages by tracing the source of these mails and maintaining a blacklist of these sources. On top of that spam mails even pose security threats as few of them are not junk mails but malicious mails with infiltrate your computer systems for malicious intent. While word based filters look for specific spam words to filters, heuristic filters take multiple words/terms before classifying something as spam. Similar to blacklist filters, whitelist filters maintain a list of the credible sources and only allow mails from these sources. A challenge response system is one of them where the message sender has to perform a task before the mail is delivered. Before sending/receiving mails from a mail server, all the mails are sent through a mail exchange record which is equipped with multiple filters designed to detect spam messages and blacklist the source of the message.

Spam filtering is the most effective counter to these unwanted messages and in this article we will discuss everything you need to know about spam filters. These filters are technically advanced, constantly updated and have a specific way of identifying and filtering spam messages. Constantly receiving spam messages on your work email can be more frustrating as business organizations mostly use emails for all their communication.

If half of your inbox is filled with unwanted messages, advertisements and promotional mails, wouldn’t you be frustrated? You would most certainly be, isn’t it? You’d be surprised to know that more than 50% of the mails exchanged everyday all over the world is spam.

2. Content Based Filters

While the above mentioned spam filtering technique blocks spam by tracing the message source, this technique analyzes the message content to classify a mail as spam or otherwise.

Few of the most commonly used email filter types are discussed below:

1. There are different types of content based spam filters namely word-based filters, heuristic filters and Bayesian filters. This way, all the messages coming from the blacklisted sources will always be blocked.

3. Real-time blackhole filters are similar to blacklist filters but operate without much human intervention