Dualog® MailDefence

A maritime-optimised, multi-layered email security gateway

A central part of the Dualog Cloud environment, Dualog® MailDefence™ is an enterprise-grade security solution that integrates with Dualog® Business Mail, Dualog® Crew Mail or other cloud-based mail solutions to protect your business & crew accounts from phishing, spoofing, malware, ransomware, zero-day viruses and other malware.




Dualog's state-of-the-art cloud email security gateway - dubbed MailDefence - is purposely built to mitigate any attack relayed by email. Each message sent to your ships goes through an extensive security check that includes scans by multiple antivirus engines, anti-spam scoring mechanisms, email fingerprint analysis, phishing checks and domain sanity checks. By deploying an effective array of tools, techniques and smart solutions, including machine learning, we dramatically reduce the occurrence of spam and other malicious content from reaching your vessels. Dualog MailDefence also offers anti-spoofing methods including SPF, DKIM and DMARC* that will protect your brand by preventing email abuse attacks and increase your email deliverability.

*Costs may apply.

Why do you need MailDefence?


Email is the number one attack vector used by hackers to get access to your company's confidential data, and email attacks such as phishing are on the rise. In the last years, the industry has seen a steep increase in the volume of spam, phishing and malware attacks. Every hour, more than 15000 messages pass through our system where they are carefully filtered and delivered only when deemed safe. Nearly half of the messages are rejected as they represent a threat.

A common threat is the use of deceptive messages where the hacker attempts to impersonate someone familiar to the recipient. It is not uncommon to see the content of messages sent in the past being resent together with a malicious attachment or links. Even though awareness and training should be an essential part of your cybersecurity risk management processes, such deceptive strategies are challenging to mitigate without reliable technological solutions in place.
Hence, a primary line of defence should be an enterprise-grade, maritime-optimised email security gateway which guards you against spam, viruses and other malware attacks delivered by email.

Email protection

More than 90 % of attacks start with an email

Email protection is an essential component in Dualog MailDefence and includes multiple antivirus engines and smart anti-spoofing and anti-phishing features. By having a robust and reliable email security measure in place, you will save yourself from outside attacks such as phishing, malware and ransomware, and your employees, clients, and other related business entities from potentially crippling losses.

Read more: Emotet - The most dangerous malware in the world!


Spam blocker

Don't fill up your inbox with garbage

A strong point of Dualog MailDefence is the smart anti-spam filtering mechanisms, purposely built to minimise the amount of spam relayed to your vessels. The service utilises a wide array of reputation-based checks as well as machine learning to detect and filter out spam. The service allows for shipping companies to set custom sensitivity limits to ensure the right balance between protection and false positives.



Stop the bad guys from using your domain

Email spoofing is a technique used to forge email headers so that the message appears to originate from a source other than the true sender. To build a positive reputation, you want to ensure that no spam or malicious content goes out in your name. The 'Anti-Spoofing' features in Dualog MailDefence prevents spammers from sending messages with falsified 'From' addresses from your protected domains.



Reduce the risk of cyber incidents halting your operations

IMO and class societies require shipping companies to have a multi-layered cybersecurity approach, with tools to stop or minimise the occurrence of spam and other malicious content from reaching your vessels. With Dualog MailDefence, you can rest assured that you have state-of-the-art email protection in place, with robust monitoring that ticks all the boxes in your cybersecurity audit.

Read more: Important information about maritime cybersecurity in 2020

IMO 2021 is coming fast – which boxes do Dualog´s solutions tick


No need for onboard installations

It is easy to upgrade your email security. As soon as you have an active subscription, you are ready to direct your current domain records to point to the Dualog MailDefence server. If you manage your domain from a third-party hosting provider, you must update the DNS records in your registrar's account.


Easy to deploy

Roll-out to full fleet in one day

You can quickly deploy MailDefence across even the most extensive fleet, often within a matter of days or even hours.


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8 reasons why choose Dualog MailDefence as your email security gateway

Email protection built for maritime
Strong phishing protection
Proven spam blocker
Anti-spoofing option
Quick & easy setup
24/7 technical support
Affordable monthly billing
Cybersecurity compliance

Ultimately, Dualog MailDefence is an essential component in the cybersecurity toolkit that will reduce the risk of cyber incidents, improve seafarer's productivity and help shipping companies comply with current cybersecurity industry standards and demands. To learn more about our email services can help you create a more cyber resilient environment onboard your vessels, click below.