What is the hostname or IP address of the smart host that I have to enter on my Exchange server?

The hostname of our smarthost is relay.europeanmx.eu. When using the smarthost, please make sure that it is shipped via port 587. In addition, a user must be created for outgoing emails, via which the smart host sends outgoing emails.

Instructions on how to set up an outgoing user can be found in our FAQ article "How do I set up an outgoing user?".