According to the SAP Fiori App Types and Database Requirements document1, analytical apps and fact sheet apps require SAP HANA as system database. Analytical apps provide insight into the real-time operations of the business by collecting and displaying analytic information and indicators, such as KPIs, directly in the browser. Fact sheet apps display contextual information and key facts about central objects used in the business operations. Both types of apps consume data immediately from the SAP HANA database, mainly through search models. Transactional apps and classic applications, on the other hand, can run on any database supported by the SAP NetWeaver Application Server ABAP. Reference: SAP Fiori App Types and Database Requirements document1

To configure an AS ABAP-based SAP system for outbound mail, you need to perform the following steps:
Maintain and activate an SMTP node in transaction SCOT. This node defines the connection parameters and the authentication data for the SMTP server that will send the mails to the recipients.
Maintain the default domain in transaction SCOT. This domain is used to complete the email addresses of the recipients if they are not fully qualified.
Optionally, you can also maintain the sender addresses, the address areas, and the output formats for the outbound mails in transaction SCOT. The other options are not mandatory for the outbound mail configuration. You do not need to create a system user with authorization profile SA_SCON, as this profile is only required for the administration of SAPconnect. You do not need to maintain and activate the SAPconnect node in the ICF, as this node is only required for the inbound mail processing. Reference: [ADM103], Unit 5: Communication and Integration Technologies, Lesson: SAPconnect, Slide 8-12; [SAPTEC], Unit 4: User Administration, Lesson: Authorizations, Slide 9.