Dealing with spam can be frustrating, expensive and time-consuming. For businesses, spam can be seriously harmful, with attackers using spam email to spread malware to business users. For these reasons, it’s vital that any business relying on emails for both internal and external communications has a strong email filtering solution in place to stop spam.
Email filtering solutions categorize all inbound email traffic to determine whether each email is safe and should be delivered, or malicious and should be blocked. Email filters sort emails into categories like spam, grey-mail, viruses and phishing attacks, which determines whether the emails should be delivered to users.
But not all email spam filters offer the same functionality. Some are simplified for email accounts that need to block spam but don’t need the highest level of threat protection, while others are for enterprise users that need strong defenses against cyber-attacks to protect their users and data.
The anti-spam filters we’ve outlined in this article are all cloud-based solutions. This article will cover the best anti-spam email filtering solutions for a range of use cases.
How Do Email Filtering Solutions Work?
Email filtering services will use a layered mixture of firewalls and filters to identify and block unwanted messages. Each layer will scan for specific indicators of compromise (IOC) – these are specific features that suggest an email is suspicious.
Many email filtering solutions will also include CRM or sandboxing features. CRM stands for content disarm and reconstruction – this is where a suspicious file is unpacked and stripped of any executable material to ensure it is clean. Sandboxing provides an isolated and safe space where software can be executed to assess its behavior and decide if it is malicious or not.
What Is The Problem With Spam?
Spam is both annoying and dangerous. How many times do you go in to work on a Monday morning to find an inbox full of annoying, irrelevant spam emails?
Spam filtering solutions will ensure that this nuisance mail is identified and blocked before it enters your mailbox. Not only is this less annoying, but it is also more productive. It means that employees don’t have to spend their valuable time sifting through nuisance emails until they find something important.
Spam emails can be dangerous too. Most of the time they are simply advertisements that are irrelevant. In some cases, however, these emails may have malicious content. This might be an innocent looking link that takes you to a spoofed website, or a malware-infested download.