TOFU code available

Werner Koch wk at
Tue Oct 13 13:26:25 CEST 2015

On Tue, 13 Oct 2015 10:33, neal at said:

> aggressively normalize email addresses then we'll never be done.  For
> instance, we need to consider homograph attacks (glyphs that look
> similar but have different code points, e.g. a and alpha) and invalid

Also transliteration are a common problem.  For example
"otto.müller at foo" -> "otto.mueller at foo" which is pretty common in German
and there are more complex cases if it comes to Cyrillic or Japanese.
Better leave this to the MUA.

Thanks for writing this up,


Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.

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