standards for iso encoding subject lines?

[Al Iverson <iverson @ mnjazz . com>]

Is there a relevant RFC or standards document that would help explain
how iso encoding works in situations like email subject lines?

i.e. stuff like this:

Subject: automatische =?iso-8859-1?Q?R=FCckantwort_?=

Tips/pointers appreciated.

Regards,
Al Iverson
--
Al Iverson -- iverson@mnjazz.com -- Minneapolis, Minnesota
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