Configures Sitecore EXM to use EU Datacenters, instructions from https://kb.sitecore.net/articles/947205

Sparkpost.Europe.config

<?xml version="1.0" encoding="utf-8"?>
<configuration xmlns:x="http://www.sitecore.net/xmlconfig/" xmlns:role="http://www.sitecore.net/xmlconfig/role/" xmlns:eds="http://www.sitecore.net/xmlconfig/eds/" xmlns:exmEnabled="http://www.sitecore.net/xmlconfig/exmEnabled/">
    <sitecore exmEnabled:require="yes" role:require="Standalone or ContentManagement or DedicatedDispatch" eds:require="EmailCloud">
        <exm>
            <eds>
                <smtpSettings>
                    <server>sitecore-eu.smtp.e.sparkpost.com</server>
                    <userName>sitecore-eu</userName>
                </smtpSettings>
                
                <edsService>
                    <param desc="apiUrl">https://sparkpost-eu.cloud.sitecore.net</param>
                </edsService>

                <configurationStore>
                    <apiUrl>https://sitecore-eu.api.e.sparkpost.com/</apiUrl>
                </configurationStore>
            </eds>
        </exm>
    </sitecore>
</configuration>