or message body, as flat US-ASCII text. This set of documents, collectively called the Multipurpose Internet Mail Extensions, or MIME, redefines the format of messages to allow for (1) textual message bodies in character sets other than US-ASCII, (2) an extensible set of different formats ...
IPsis a range of IP in dotted notation. You can specify range with the - (hyphen) and single ip with , (comma). You can also use ; (semicolon) to indicate different ip addresses. e.g. "10.0.0.1-5;10.0.1.33" expands into ip 10.0.0.1, 2, 3, 4, 5 and 10.0.1.33 ...