UnicodeDecodeError while sending an e-mail

[Goldan]

When I'm trying to send an e-mail using django.core.mail.send_mail function, I get the following error:

DjangoUnicodeDecodeError: 'utf8' codec can't decode bytes in position 27-28: invalid data. You passed in '<20090923114122.7992.11505@\xc4\xe5\xed\xe8\xf1-\xcf\x
ca.ipib.msu.ru>' (<type 'str'>)

Let us consider these lines in django/core/mail.py:

65 idhost = DNS_NAME

66 msgid = '<%s.%s.%s%s@%s>' % (utcdate, pid, randint, idstring, idhost)

When I replace line 65 with

65 idhost = 'example'

e-mails are sent successfully.

So the problem seems to be that my DNS_NAME contains non-ascii characters.
Hope it will be fixed. Thanks in advance.

[Russell Keith-Magee]

I think this might be a variant on #11924.