[Users] CRLF in subject

[Viatrix]

Hi Marco,

This is "folding", a defined feature in RFC 5322. The header with a
CRLF is semantically equivalent to the header without the CRLF, but the
CRLF is added so lines stay within a maximum line width.
see https://www.rfc-editor.org/rfc/rfc5322.html#section-2.2.3

(Usenet messages are defined by RFC 5536, which in this aspect is no
different to RFC 5322.)

-- 
Viatrix she|they https://viatrix.is-hella.gay
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