SAP ABAP Program RSSMTP00 (Email) is using

• Class (8)
• Data Element (1)
• Table/Structure Field (2)
• Interface (5)
• Message Class (1)
• Message Number (1)
• Class Method (16)

#	Object Type	Object Name	Object Description	Note
1	Class	CL_ABAP_CONV_OUT_CE	Code Page and Endian Conversion (System Format -> External)
2	Class	CL_SMTP_CLIENT	SMTP Client Control Block
3	Class	CL_SMTP_REQUEST	SMTP Request (Implements IF_SMTP_REQUEST)
4	Class	CL_SYSTEM_UUID	Class for Processing 16 Byte System UUIDs
5	Class	CX_BCOM_SMTP	Exceptions in (E) SMTP classes
6	Class	CX_ROOT	Abstract Superclass for All Global Exceptions
7	Class	CX_STATIC_CHECK	Exceptions with Static and Dynamic Check of RAISING Clause
8	Class	CX_UUID_ERROR	Error Class for UUID Processing Errors