G DATA 365 | Mail Protection

Open PowerShell. Enter the following command to install the Exchange Management module:

Respond to the prompts with J.

Start the connection with the following command:

Replace the user MaxMustermann@x-company.cloud with your user account.

A sign-in window opens. Enter your password here.

Continue with the section
Create connectors and a rule using Exchange Online PowerShell

Open Exchange PowerShell and sign in to Office 365. (Support for this is available in the section
Extend PowerShell for connecting to Microsoft 365)

Create a new outbound connector with the following command:

Create a rule with the following command:

Replace the domains x-company.cloud and x-company.onmicrosoft.com with your domain names.

Create a new inbound connector with the following command:

Open Exchange Admin Center and sign in.

Select Mail flow and Connectors.

Click Weiter.

Click .

Select:

Click Weiter.

Enter the name G DATA 365 Mail Protection and, optionally, a description. Select the Aktivieren checkbox.

Click Weiter.

Select: Nur, wenn ich eine Transportregel eingerichtet habe, die Nachrichten an diesen Connector umleitet.

Click Weiter.

Select: E-Mails über diese Smarthosts weiterleiten and enter mailprotection.gdata.de as the smart host. Add it to the smart host list via +.

Click Weiter.

Select: Immer TLS (Transport Layer Security) zum Sichern der Verbindung verwenden (empfohlen) and Von einer vertrauenswürdigen Zertifizierungsstelle (CA) ausgestellt.

Click Weiter.

Create a list with at least one of your email addresses per domain (add via +) and start a validation of the connector for these email addresses by clicking Überprüfen.

This test should complete without errors. If problems occur, also refer to, among other things, Hinweise zur Einrichtung des Connectors.

Click Weiter.

Review the setting in the summary and click Connector erstellen.

Click Fertig.

Click .

Select:
Connection from: Partnerorgansisation

Click Weiter.

Enter the name G DATA Mailprotection Inbound Secure Connector and, optionally, a description. Select the Aktivieren checkbox.

Click Weiter.

Select Durch Überprüfen, ob die IP-Adresse des sendenden Servers mit einer der folgenden IP-Adressen übereinstimmt, die zu Ihrer Partnerorganisation gehören.

Enter the IP 194.156.84.32/28 and add it to the list via +.

Click Weiter.

Select the checkbox to reject emails if they are not sent via TLS.

Click Weiter.

Review the setting in the summary and click Connector erstellen.

Click Fertig.

Open the page Enhanced Filtering.

Here you will find the inbound connector you just created with Enhanced Filtering disabled.

Click the connector row G DATA Mailprotection Inbound Secure Connector. An editing pane opens on the right side of the screen.

Select Diese IP-Adressen überspringen, die dem Connector zugeordnet sind:. Enter the IP range 194.156.84.32/28.

Select Auf gesamte Organisation anwenden and click Speichern.

Filtering for the connector is now displayed as Ein.

Go to E-Mail-Fluss and Regeln.

Click and select Eine neue Regel erstellen.

Enter Redirect to mailprotection.gdata.de as the rule name.

For Diese Regel anwenden, wenn, select the following values from the drop-down menus:

Der Absender and ist extern/intern

A side pane opens on the right edge of the screen.

Select the option Outside the organization and click Speichern.

Use + to add a new AND condition and, from the drop-down menus, select Der Empfänger and Domäne ist.

Create a list of all domains that are to be checked by G DATA 365 | Mail Protection. If multiple domains are used, each domain must be entered separately and added to the list via the Hinzufügen button.

Then click Speichern.

For Gehen Sie wie folgt vor, select the following values from the drop-down menus:

A side pane opens on the right edge of the screen.

Select the connector G DATA 365 Mail Protection and click Speichern.

For Außer wenn, select the following values from the drop-down menus:

A side pane opens on the right edge of the screen.

Enter the following IP range there: 194.156.84.32/28 and click Speichern.

Click Weiter.

Configure the following settings for the rule:

Rule mode = Enforce Severity = High

Click Weiter.

Review the settings and click Fertig stellen.

Click the row of the created rule in the Exchange Admin Center and enable the rule using the toggle switch in the pane that opens on the right edge of the screen.