Email security

Email remains the most important internet-based service for businesses. That’s why this service must be kept available and free of viruses and spam. To ensure this, we use well-known products from manufacturers like Cyren, ESET, ClamAV, SonicWALL, Sophos, SpamAssassin and Trend Micro.

Email as digital business correspondence

Email as the central means of communication is indispensable in the digital world, despite many efforts to do without it. Emails must be free of spam and malware to support productivity and defend against attacks.

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Benefits

Always up-to-date protection

Email security at Pallas is always kept up-to-date and protects against known and as-yet unknown dangers.

Easy

Email security is easy to integrate, regardless which email solution you are currently using

Expandable

Aside from classic spam and anti-malware protection, email security can be expanded by S/Mime/PGP encryption, TLS protection, archiving, etc.

Browse the web well-protected

As part of our Managed Security Service, we manage numerous installations for our customers. Usually, we first determine what you need and then use our experience to fine tune this. In that sense, the products and services described here are only examples of our portfolio. We welcome questions!

We provide our Managed Security Services on-site with the customer or at our highly secure computing centre with professional operating standards and agreed service levels (SLA).

We use well-known virus filters (see above) to check incoming and outgoing files for viruses. They use signature-based, heuristic and traffic-based methods. We use proactive virus protection (zero-hour protection) that works in real time against novel malware waves. Reputation filters reduce the risk of receiving dangerous mail from senders of ill repute.

We use well-known Cyren and SpamAssassin filters to filter out spam. Aside from filters based on content analysis, proactive spam protection (real-time anti-spam) works by recognising spam in real time based on its bulk mailing method. Blacklists and whitelists can be used and a reputation filter prevents the receipt of unwanted mail.

It is standard for mail servers to communicate with one another unencrypted. But for many years now, in order to make emailing more secure, our mail servers have been set up to encrypt with TLS (transport layer security) whenever the counterparty is also equipped for it. Pallas can also set up mandatory TLS, in which case sending and receiving is stopped if the counterparty cannot encrypt. This is important when critical data needs to be transferred between partners. This measure is transparent to users.

If email inboxes are within the Pallas infrastructure, they can be accessed through IMAPs or POPs, always encrypted by TLS. Of course, we also forward emails or whole email domains to customer mail servers.

We offer multiple solutions for email archiving, from simple duplication at a central location or on-site, to automatic and secure storage in legally compliant, integrated systems.

Thanks to high-availability infrastructure measures, Pallas systems are often better protected against downtime than customer systems. To prevent emails from being lost if a customer server goes down, they are automatically buffered at Pallas over multiple days.

Unencrypted email communication cannot meet standard protection goals for information security, namely confidentiality, integrity, and authenticity. However, these goals can be achieved with email signatures and encryption. With the solution by Zertificon Solutions used by Pallas, this process is customised to the user, but remains fully transparent and without changes to the user system and customer mail server. This overcomes the otherwise typical complexity of practical implementation. Secure email uses the standard processes S/MIME and PGP.

Differences in signature or footer information of emails from different employees are unattractive and can even be a legal violation. Pallas AutoFooter automatically sets the correct email signature, so that legal information, additional information, disclaimers and advertisements are attached to all outgoing emails identically and at the right time. This fulfils marketing and compliance requirements in equal measure. AutoFooter is rule-based, e.g. depending on sender-receiver combinations. It is multi-client enabled and so can also be used in corporate structures with many affiliated companies.

AutoFooter is an original development by Pallas and can be used as a pure software solution or as a Managed Service.

The header of every email normally contains information that maps the transport route and the participating mail systems. This allows conclusions to be drawn about infrastructure, organisational structure, internally used systems and release statuses. This information can be used for targeted attacks against email systems. The OHM solution developed by Pallas removes or pseudonymises such critical information.

If encrypting emails is impossible for technical or organisational reasons (e.g. when communicating with any number of end users), but an encrypted transmission path is still needed (e.g. for personal data), the Pallas solution VVD steps into the gap. It’s quite easy to use. The data stream is automatically directed to a secure web server, from which the data can be downloaded in encrypted form via https. Unlike in normal encrypted email exchange, the data can even be virus-protected.

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Vendors & Certifications

Pioneering products and solutions from the world’s leading vendors

SonicWALL
SonicWALL

SonicWall

The SonicWall Capture Cloud Platform seamlessly integrates security, management, analytics and real-time threat intelligence across the company’s portfolio of network, email, mobile and cloud security products. This approach enables our complete portfolio of high-performance hardware, virtual appliances and clients to harness the power, agility and scalability of the cloud.

Sophos
Sophos

Sophos

Our products enable you to protect all the endpoints in your network – laptops, virtual desktops, servers, internet and email traffic, and mobile devices. Protection is provided by products tailored to your specific needs. In securing your network, we offer what no one else can: simplicity.

Trend Micro
Trend Micro

Trend Micro

Protection against ever-evolving threats. Using advanced AI learning, Trend Micro stops ransomware so you can enjoy your digital life safely. It also protects against malware, online banking and shopping threats, and much more.

apache spam assassin
apache spam assassin

Apache SpamAssassin

Apache SpamAssassin is the #1 Open Source anti-spam platform giving system administrators a filter to classify email and block spam (unsolicited bulk email).

It uses a robust scoring framework and plug-ins to integrate a wide range of advanced heuristic and statistical analysis tests on email headers and body text including text analysis, Bayesian filtering, DNS blocklists, and collaborative filtering databases.

Apache SpamAssassin is a project of the Apache Software Foundation (ASF).

Cyren
Cyren

Cyren

Cyren provides an array of proprietary technology, ranging from algorithms and behavioural analytics to big data, machine learning and advanced threats research.

By automating advanced analytics within the cloud, Cyren uses its extensive detection capability to identify and block threats faster than any other solution. Cyren is revolutionising internet security by using comprehensive cloud data to provide the fastest protection available. Industry leaders such as Google, Microsoft and Check Point trust Cyren to protect millions of users and billions of internet transactions every day.

eset
eset

eset

ESET began life as a pioneer of antivirus protection, creating award-winning threat detection software. Now, the company has a much more ambitious goal: to ensure that everybody can enjoy the breathtaking opportunities offered by technology.

Today, its security solutions allow businesses and consumers in more than 200 countries and territories to make the most of the digital world.

clamav
clamav

ClamAV

ClamAV® is an open source (GPL) anti-virus engine used in a variety of situations including email scanning, web scanning, and end point security. It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and an advanced tool for automatic database updates.

http://www.clamav.net

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Email archiving

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