An API for creating subscription management applications is provided, plus standard components for collecting event data from files and SQL Server databases, for formatting notifications using XSLT, and for sending notifications via Simple Mail Transfer Protocol ( SMTP ) or by writing notifications to a file.
22.
For example, an " address record ", having the identifier " A " for IPv4 and " AAAA " for IPv6, maps the domain name from the first field to an IP address in the record data, and a " mail exchanger " record ( " MX " ) specifies the Simple Mail Transfer Protocol ( SMTP ) mail host for a domain.
