No set up notes for Mandrill I'm afraid. But with Ebase Xi V4.5 you don't have many choices if you want to use Email Resources (which is by far the simplest way to send an email). You can only specify the email server name or ip address - this is property Ufs.emailHostId in file UFSSetup.properties which is in UfsServer/tomcat/webapps/ufs/WEB-INF/classes. If you change this file you need to restart the server. Here's some documentation on these properties
http://dev-docs.verj.io/ufs/doc/UFS_sta ... meters.htm. In the Email Resource you can also specify a username/password combination which is used for authentication.
With version 4.5, if you want to do anything more complicated e.g. use TLS or SSL encryption - which might be required by Mandrill, you need to write some script code to use javamail. So you may find that your Mandrill server will reject any emails. I won't include an example of this javamail code as it's a fairly advanced thing to do and you're just starting with Ebase.
In Ebase Xi version 5.0, the email support has been enhanced and supports many more configuration options including TSL/SSL. This should allow you to configure any email server including Mandrill and send emails using Email Resources. Version 5.0 is in beta at the moment and is downloadable from our website if you're interested.