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Many email clients provide some protection against spam and email-borne threats, but there are significant benefits of implementing a professional email filtering service. Professional email filtering services have additional mechanisms to reduce the volume of spam email that avoids detection, anti-virus software to identify threats contained within emails, and outbound scanning to prevent your organization´s IP address being incorrectly regarded as a source of spam.
These elements of an email filtering service help to increase productivity, mitigate the risks from phishing and malware, and save your organization the headache of being removed from a global blacklist. Studies have demonstrated that an organization with six hundred employees loses more than 130 days a year if each employee receives five spam emails per day, while phishing campaigns are acknowledged to be responsible for more than 90% of all data breaches.
All email filters use front-end tests to eliminate spam from known sources. These tests usually consist of comparisons against global blacklists, the validation of Sender Policy Frameworks, and Bayesian analysis to identify attempts to circumnavigate the spam filter settings. Once the front-end tests are conducted, most email clients will then forward inbound emails to the recipients´ inboxes. What a professional email filtering service does differently is re-inspect the emails.
Professional email filtering services use a variety of mechanisms in the re-inspection process, but one of the most effective is greylisting. Greylisting temporarily rejects any email from a sender the email filter does not recognize and asks for it to be resent by the sender´s mail server. Usually this is not a problem. The request is acknowledged, the email resent, and the sender´s IP added to a whitelist to prevent any delays in the delivery of future emails.
However, when the email has originated from a previously unknown source of spam (i.e. one that does not appear on a global blacklist), the request goes unanswered. This is because the bulk email tools used by spammers do not queue and reattempt mail delivery as regular mail servers do. Consequently, the greylisting process detects spam that would otherwise have been allowed through, and identifies previously unknown sources of spam to add to the global blacklists.
Most organizations already have anti-virus software installed to protect their systems and networks from malware. However, most anti-virus software acts retrospectively by detecting malware once it has been installed. The anti-virus protection incorporated into an email filtering service detects security risks within the content of emails and their attachments, preventing the delivery of any infected emails so that they cannot be opened and the malware installed.
The anti-virus mechanisms also look for phishing emails and ones containing malicious URLs. These threats to online security are becoming more complex and, in 2016 Q1, it was reported that 93% of all reported phishing emails contained encryption ransomware. By blocking the passage of these malicious emails, an email filtering service helps to protect your organization´s network from data breaches, system-wide infections and ransomware.
One further role conducted by the anti-virus mechanisms of an email filtering service is the scanning of outbound mail. Although it may seem unlikely that any employee within your organization would dispatch an email containing a virus, the possibility exists that a file prepared on an infected home computer could be attached to an outbound email. Outbound scanning prevents the scenario in which your organization´s IP address is considered a source of spam or malicious software and blacklisted.
SpamTitan from TitanHQ is a multilayered spam email filter that has won thirty-six consecutive VB Bulletin anti-spam awards for its high rates of spam detection and anti-virus protection. Using a sophisticated re-inspection process that includes greylisting, SpamTitan blocks 99.97% of spam email, has a 100% malware detection rate, scans outbound mail, and ensures email continuity in the event of downtime or a server outage.
SpamTitan from TitanHQ is easy to set up and configure via an intuitive browser-based console. Monitoring features and reporting options can be adjusted to suit your organization´s specific requirements and - depending your preference for on-premise or cloud-based solutions - we offer a choice of deployment options for our professional email filtering services:
Both solutions are suitable for Managed Service Providers (MSPs) who will find that SpamTitan Gateway and SpamTitan Cloud provide unmatched email security for your customers. Our email filtering service will protect your network from rogue or hacked customers, and both solutions have an extensive API set for integration with third-party management products. Both are also available in white label format for rebranding and reselling.
The cost of failing to implement a professional email filtering service can be considerable. The 2015 report - “The Cost of Phishing & Value of Employee Training” - estimated that the average cost to an organization of removing malware and recovering data was $1.8 million. By comparison, the cost of a professional email filtering service is typically less than $10.00 per employee per year.
However, before you commit to an email filtering service, we would like you to try SpamTitan free for thirty days. Our offer consists of a fully-enabled email filtering service that will enable you to evaluate the effectiveness of our product with no obligation on you to continue with the service once your thirty-day trial period has ended. Naturally, our offer includes full technical and customer support.
To find out more about our offer, simply give us a call. One of our team of Sales Technicians will be happy to answer any questions you have about email filtering services, review your existing configuration and make recommendations. Once the most appropriate SpamTitan solution has been selected, it only takes minutes to install our professional email filtering service so that your organization can start benefitting from high rates of spam detection and anti-virus protection today.
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