It appears that Brotman, Alex <[email protected]> said:
>"The Report-ID MUST be a unique identifier for the report generation system
>and the domain (domain-name from 7.2.1.1) to which the
>report applies. The string should be created using some number of ASCII
>characters. Otherwise, no format guidance is provided."
Space, tab, and NUL are ASCII characters so we need to limit it more than that.
I think ldh with dots and at-signs, optionally in < brackets > matches the
current
reality fairly well.
AWS puts in { } curly braces but that appears to be a bug in a call to a
template library.
R's,
John
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