How Spam Filtering Works?

UCE or Unsolicited Commercial Email is the digitized junk email termed as spam. UCE is a nuisance and the worst part is it is the access pointy for malicious code and viruses. However, spam is a long-lasting problem for individuals and businesses. There is an urgent need for a strong email spam filtering ( www.Securence/Spam-filtering ) technology as the volume of mail across the globe is more than 300 billion messages per day and 50 percent of it is spam.

Working of Spam Filter – A set of protocols used by the filtering solution is applied to the mail system for determining which of the incoming messages spam are and which are not. Various types of spam filtering are available.

Header Filters – It reviews the mail header for searching the falsified information.

Content Filters – Within a message the content is a review to check whether it is a spam or not.

General Blacklist Filters – Helps in stopping all the mails that come from the blacklisted list of known spammers.

Permission Filters – Anyone sending a message needs to be approved by the recipient.

Rules-based Filters – For blocking spam, user-defined criteria is used like particular senders or specific wording in the body or subject line.

Challenge – Response Filters – While sending a message one has to enter a code for gaining permission to send an email.

There are three different ways where spam-filtering solutions are deployed. Software installed in the systems that are integrated with an email client, hosted service or in the cloud network and on-premise appliance like any reputed spam filtering technology. However, no solution is 100 percent effective but a business mail system without spam filtering is very unusable. Majority of the spam emails contain infected mail attachments that include phishing attacks, viruses, malicious content and compromised web links. To prevent them from entering your mailbox, the spam filter provides an additional layer of protection to the users.

Picking a Top Spam Filtering ( ) Solution – Whatever spam filter one chooses it should depend on the number of emails you and your employees receive on a daily basis. It also depends on the company’s preferences and needs as well as the types of emails received and sent. For a business that needs higher security controls must opt for permission-based filter while for the businesses where employees receive newsletters and articles via mail, the content filter is the best. Spam is a billion dollar business industry and it will not stop anywhere. With the advancement in technology, spammers are innovating so that their messages go straight to your inbox where they will wreak havoc on your network.

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