G DATA Mail Protection

Guidelines for using the connectors and the rule. What should I consider?

Creating the rule changes the mail flow. When configuring this mail flow, it is important to ensure that no emails fail to reach their destination.

Based on the domain you entered, the rule determines that an email should be sent to G DATA Mail Protection through the outbound connector. Once the email has been handed off to the connector, Microsoft Exchange Online considers it delivered. Microsoft Exchange Online no longer checks whether G DATA Mail Protection has actually accepted the email.

Therefore, enable the rule only after the mail server has been added to G DATA Mail Protection and your domain has been verified.

Otherwise, incoming emails will be lost.

Observe the following points if your MX record points to Microsoft Exchange Online:

  • During initial setup, always follow the sequence described in G DATA Mail Protection rollout plan.

  • Always first check that new domains are displayed correctly and shown as verified in G DATA Web Portal before adding the domain to the rule.

  • Do not delete any server from G DATA Web Portal while a rule is still active in Microsoft Exchange Online.

  • Domains that are not included in the rule but are active in G DATA Mail Protection do not have incoming emails scanned upon arrival. However, emails in their mailboxes are checked during rescans.

  • Domains that are included in the rule but are not verified in G DATA Mail Protection will lose their incoming emails.

If you have configured the settings this way, changing the MX record is not strictly necessary. Nevertheless, we recommend changing the MX record to point to G DATA Mail Protection, as described in this article:
Point your domain’s MX record to G DATA Mail Protection

If the MX record is not changed, DMARC (Domain-based Message Authentication, Reporting and Conformance) or other specifications may cause emails to be classified as spam more frequently or prevent emails from being delivered.

Caution: Incorrectly configured DNS can also cause email loss!