Statement syntax

In creating the SMTP rules data set you must use the following syntax conventions:

The data set statements are free-format. Tokens can be separated by an arbitrary number of spaces, and statements can span an arbitrary number of lines. However, you must end every statement with a semicolon (;).
A character string appearing within single quotation marks ('…') is not case-sensitive. For example, 'abc' represents 'abc', 'Abc', 'ABC', and so forth.
A character string appearing within double quotation marks ("…") is case-sensitive. For example, "abc" represents only "abc". It does not represent "Abc", "ABC", and so forth.
Special characters, such as @ and % are treated the same whether enclosed by single quotation marks or double quotation marks.
Double-hyphens ("--") are used to begin a comment. The comment extends to the end of the line.