Does not support IDNs with SMTPUTF8.

[Lolalolo]

dkimpy does not sign E-Mails send over SMTPUTF8 while there are in their UTF8 Form. It does not try to convert it to punycode and if i try to provide an entry in the key-table in utf8, it just does not sign it and crashes.
sign_dkim: 'ascii' codec can't encode characters in position 0-4: ordinal not in range(128)
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/Milter/__init__.py", line 772, in <lambda>
  milter.set_eom_callback(lambda ctx: ctx.getpriv().eom())
File "/usr/lib/python3/dist-packages/dkimpy_milter/__init__.py", line 198, in eom
  self.sign_dkim(txt)
ilter[169754]: File "/usr/lib/python3/dist-packages/dkimpy_milter/__init__.py", line 319, in sign_dkim
  h = d.sign(codecs.encode(self.selectorRSA, 'ascii'), codecs.encode(self.fdomain, 'ascii'),
UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-4: ordinal not in range(128)

[Lolalolo (lfsjfsjdfs-deactivatedaccount)]

Sorry wrong project