Anti Spam Software for Exchange 2013

If your organization uses the 2013 version of Microsoft Exchange Server to manage the distribution of email, you should also implement third party anti spam software for Exchange 2013. This is because of the way Microsoft updates its Exchange Server software (retrospectively) and the frequency with which spammers release new variants of spam email (multiple times daily).

Consequently, Microsoft´s proprietary anti spam software filters catch a relatively small percentage of spam – exposing organizations to the risk of phishing campaigns, spoofed emails and email-driven cyberattacks. The productivity loss to an organization handling hundreds of spam emails every day can cost tens of thousands of dollars every year, and being the victim of a cyberattack can cost a lot more.

In 2015, the Ponemon Institute released a report entitled “The Cost of Phishing & Value of Employee Training”. Researchers compiling the report calculated that the average cost to an organization of removing malware and recovering data following a cyberattack was $1.8 million. The 2020 Cost of a Data Breach Report from the Ponemon Institute/IBM Security shows the cost of mitigating a data breach has risen substantially. The average cost of a breach of up to 100,000 records was determined to be $3.86 million. By comparison, the cost of implementing third party anti spam software for Exchange 2013 is typically less than $10.00 per employee per year.

How Third Party Anti Spam Software for Exchange 2013 Works

Third party anti spam software for Exchange 2013 works by running a series of tests on each inbound email and comparing their IP addresses to those that appear on global blocklists. Other tests result in each email being given a Spam Confidence Score based on its content, the quality of its attachments, and the IP reputation of the sender.

Network administrators can adjust the software´s parameters to tweak the Acceptable Spam Threshold. Most anti spam software for Exchange 2013 allows administrators to apply different thresholds for different users or user groups, so that business-critical emails are not quarantined in error – for example, sales leads.

The security mechanisms conducting the tests are updated in real time, and the tests are run in a sequence that prevents emails queuing up and delivery being delayed. Anti-virus software also checks each email for malware within its content or within an attachment, while SUBRL filters check for links to websites known to feature frequently in unsolicited emails and malicious links used for phishing or malware distribution.

Third party anti spam software for Exchange 2013 should also scan outbound emails. This is to check no outbound emails contain content that could be considered spam by an over-zealous inbound filter and be reported to a global blacklist agency – the consequence of which could be the organization´s IP address is added to a blocklist. This is a feature absent from Microsoft´s proprietary anti spam filters, unless the organization pays extra for an Advanced Threat Protection (APT) package.

The Significance of Outbound Scanning

The significance of outbound scanning should not be underestimated. If an organization´s IP address is blacklisted after spam or malware has been identified by another user´s inbound email filter, it may not only affect the organization´s ability to send and receive emails. It could affect access to their website too and any other operation that involves the DNS server.

For MSPs not subscribing to an Advanced Threat Protection package or a third party anti spam software for Exchange 2013, the consequences can be devastating. If one of an MSP´s clients has their IP address blocked, and other clients of the MSP are sharing the same IP address, all the clients with the shared IP address will experience the same problems.

Although it is not difficult to get an IP address unblocked, it can be time-consuming. If the clients of an MSP are without email services and web access for (say) seven days, it will likely result in a loss of credibility and a loss of custom. For this reason alone, MSPs should certainly investigate third party anti spam software for Exchange 2013.

Comparison of Anti Spam Software for Exchange 2013

In order to compare anti spam software for Exchange 2013, it is best to start with Microsoft´s premium “Advanced Threat Protection” (APT) service. APT has now replaced Microsoft´s “Forefront Protection for Exchange”, but unlike its predecessor has no on-premise hosting option. APT has been criticized for having a high maintenance overhead.

Despite being more expensive than third party anti spam software for Exchange 2013, APT lacks several key security mechanisms – one being “greylisting”. Greylisting is one of the most effective tools in the detection of spam email. It works by returning emails to their originating servers and asking that the email is resent. Spammer´s servers usually ignore the request due to being too busy sending more spam, and the email is never returned.

Third party alternatives to APT vary in their ability to detect spam and protect organizations from email threats. Consequently, when making a comparison of anti spam software for Exchange 2013, there are multiple considerations to take into account. For example:

  • What is the spam capture rate? How is it verified?
  • How many genuine emails are captured as spam?
  • How are emails captured as spam managed and reported?
  • What anti-virus software is used to identify email threats?
  • Is there an email continuity service in the event of an outage?
  • How is the anti spam software for Exchange 2013 deployed?
  • Can the service provider supply independent testimonials from existing customers?

There will likely be plenty more considerations to take into account depending on the size of your organization and the nature of its business. For example, organizations with limited IT resources may have concerns about the software´s ease of use, while Managed Service Providers may require APIs to integrate the software with other management tools and a white label option.

SpamTitan Gateway and SpamTitan Cloud

SpamTitan Gateway and SpamTitan Cloud are two powerful anti spam filters that equip network administrators with the tools they need to reduce spam and increase protection against phishing attacks and malware. Both anti spam filters block 99.97% of spam – according to the leading independent testing and certification body VB Bulletin – and identify just 0.03% of genuine emails as spam (“false positives”).

Network administrators have a choice of what settings are applied to optimize the performance of the anti spam software for Exchange 2013 and how emails captured as spam are managed (quarantined, tagged or deleted). A series of customizable reports help identify false positives or outbound emails identified as spam, and also malware threats identified by dual Bitdefender and Clam anti-virus software.

An email continuity service is provided by both anti spam filters. Both have a low maintenance overhead and both have a comprehensive selection of APIs available to integrate the anti spam software for Exchange 2013 with directory and management software. The primary difference between the two anti spam filters is how they are deployed.

SpamTitan Gateway is deployed as a virtual appliance. This means it is on-premise anti spam software for Exchange 2013 that is installed between an organization´s firewall and its mail server (an option no longer supported by Microsoft Exchange). By comparison SpamTitan Cloud is hosted in the cloud – either in SpamTitan´s Cloud, in a dedicated Private Cloud, or in a cloud within the organization´s existing infrastructure.

Comparison Table Microsoft SpamTitan
Spam Detection Rate <99.50% 99.97%
False Positives Variable 0.03%
Reporting Options Variable Comprehensive
Anti-Virus Software Microsoft Dual Protection
Email Continuity Yes Yes
Deployment Options Cloud Only Cloud/On-Premise
Customizable Anti-Spam Policies No Yes
Greylisting No Yes
Phishing Protection $24 per user/year Included
Outbound Mail Controls Fair Good

Try SpamTitan´s Anti Spam Filters for Free

SpamTitan has developed online security solutions for more than 5,000 customers since 1999. We are happy to guide organizations to independent reviews websites, where there are many testimonials about the effectiveness of our products. However, we believe that the best way to evaluate our anti spam software for Exchange 2013 is in an organization´s own environment.

Consequently we are offering all organizations and Managed Service Providers the opportunity to try SpamTitan´s fully-enabled cloud-based anti-spam service for free. Our offer includes full customer and technical support and does not require any commitment to continue with our service once the fourteen day trial period has expired.

To take advantage of this offer, simply call our team of sales engineers. One of our friendly and experienced team will answer any questions you have about anti spam software for Exchange 2013, and guide you through the installation and configuration process for the most suitable of SpamTitan´s anti spam filters.

Spammers and cybercriminals make their money by exploiting individuals and organization who fail to protect themselves against email threats. Make sure your organization is protected against spam, phishing campaigns, spoofed emails and email-driven cyberattacks by implementing anti spam software for Exchange 2013 today.


How does anti-spam software for Exchange 2013 help in preventing spam messages?

Anti-spam software for Exchange 2013 helps in preventing spam messages by analyzing the content and characteristics of incoming emails. It utilizes various techniques such as content analysis to determine the likelihood of an email being spam. The filter may also examine the subject line, sender information, and attachments to make this determination. By filtering out spam messages, the anti-spam software for Exchange 2013 improves overall email security, reduces the risk of phishing attacks, and enhances the productivity of users by keeping their inboxes clean.

What criteria can be used to block or allow the delivery of email messages using the content filtering feature of Exchange 2013 anti-spam software?

The criteria that can be used to block or allow the delivery of email messages include keyword filters, attachment types, and specific file types. For example, businesses can create a content filter rule to block all emails containing keywords associated with spam or phishing. Conversely, you can create a content filter rule to whitelist emails that contain specific keywords or originate from trusted senders.

What are the 4 main benefits of using anti-spam software for Exchange 2013?

The 4 main benefits of using anti-spam software for Exchange 2013 are:

  • Reduced spam: The software can help to reduce the amount of spam that reaches users' mailboxes. This can free up users' time and improve their productivity.
  • Protects against malware: Anti-spam software can also protect users from malware by blocking emails that contain malicious attachments. This can help to prevent data breaches and other security incidents.
  • Improves email security: Anti-spam software for Exchange 2013 can help to improve the overall security of an organization's email system by blocking unauthorized access and preventing the spread of malicious content.
  • Saves money: Exchange 2013 anti-spam software can help to save organizations money by reducing the cost of IT support and by preventing users from clicking on malicious links or attachments.

What are the two main types of email filters?

The two main types of email filters are content filters and blacklists. Content filters analyze the content of email messages for signs of spam or malware. For example, content filters may look for certain keywords or phrases that are commonly used in spam messages, or they may scan for attachments that are known to contain malware.

Blacklists maintain a list of known spam senders and IP addresses. When an email message arrives from a sender or IP address that is on the blacklist, the email filter will block the message from being delivered. In addition to these two main types of email filters, there are also a number of other types of email filters available, such as:

Whitelists: These filters maintain a list of trusted senders. When an email message arrives from a sender that is on the whitelist, the email filter will deliver the message even if it would otherwise be blocked by other filtering techniques.

Bayesian filters: These filters learn to identify spam messages by analyzing the content of messages that have been previously classified as spam or ham (non-spam).

Heuristic filters: These filters use a set of rules to identify spam messages. For example, a heuristic filter might look for messages that are sent from a sender with a high spam score, or messages that contain a large number of links.

How can an administrator monitor and review the effectiveness of Exchange anti-spam software?

An administrator can monitor and review the effectiveness of Exchange anti-spam software by regularly analyzing spam detection rates, false positive and false negative rates, and the overall effectiveness of individual filtering mechanisms. Logs and reports can also be reviewed to gain insights into the software’s performance, such as the number of blocked or allowed emails (note: greylisted emails are not included in these logs because they are not returned rather than blocked), rejected connections, and malware threats identified.