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Improved protection of container runtime environment

Apps will be running in a sandbox environment and without using privileged processes now.
As an exception all installed apps will be removed during the update in order to make the necessary changes. You will have to re-install the apps after the update. Of course all application data will be preserved.

S/MIME gateway tags signed mails sent "on behalf of"

Many mail clients don't mark emails sent on behalf of someone else. This will mislead the recipient into thinking, the mail was signed by the person on whose behalf the mail was sent and not the person who actually sent the mail. To prevent fraud, the email address of the actual sender will be added to the subject now: [SENT BY <...@...>].

Conversion of opaque signed mails by S/MIME gateway

Many mail clients don't support opaque signed mails, so these mails will be displayed either incorrect or not at all. If the S/MIME gateway encounters an opaque signed mail after decryption, it will automatically convert it into a "conventional" detached signed mail.

Email synchronisation between cluster nodes

The contents of the mail folders on clusters with local mail domains will now be synchronized.

User synchronization from ActiveDirectory

In release 7.0-4.7 and 7.1-0.0 the synchronisation fails on most sites.

F-Secure Antivirus

Since 2019-02-05 the scanner erroneously reports "Scanner test failed" and "F-Secure Linux Security out of function". The scanner is tested by scanning an EICAR test file. The test fails as the scanner output format has changed.
Despite of the messages the scanner works as expected.

Minor bugfixes and improvements


DEFENDO forces a collection of best-of-breed security modules like firewall, VPN, proxies, virus scanner and anti spam system to interact for one purpose:
To be protected from all online threats and unwanted contents like malicious code, spam and hacker attacks.


Each IT scenario is different. The DEFENDO product family will adapt precisely to your demands.
DEFENDO applies for simple internet connections of small companies, for headquarters / branch office WANs, as well as for complex multi-tiered firewall systems.

More good reasons

  • No backdoors
  • More than 15 years of Internet security experience
  • Award-winning product
  • Support by our development engineers
  • Reseller loyalty
  • Made in Germany