What version are you running? Review Board 2.0.19 What's the URL of the page containing the problem? http://172.16.13.193/reviewboard-lab/r/41/ What steps will reproduce the problem? 1. Create an new review request 2. Ship It Upon ship it, an email was sent in old version but not with this new version. It's works when using create or submit action in Server Log (I have mask email address by ****) 18:08:20 ERROR - Error sending e-mail notification with subject 'Re: Review Request 42: Task - 105402: test21 - rer' on behalf of 'at**** <at*****@***.**>' to 'at**** <at****@***.**>,gp**** <gp*****@***.**>' Traceback (most recent call last): File "/usr/lib/python2.6/site-packages/ReviewBoard-2.0.19-py2.6.egg/reviewboard/notifications/email.py", line 632, in send_review_mail message.send() File "/usr/lib/python2.6/site-packages/Django-1.6.11-py2.6.egg/django/core/mail/message.py", line 276, in send return self.get_connection(fail_silently).send_messages([self]) File "/usr/lib/python2.6/site-packages/Django-1.6.11-py2.6.egg/django/core/mail/backends/smtp.py", line 94, in send_messages sent = self._send(message) File "/usr/lib/python2.6/site-packages/Django-1.6.11-py2.6.egg/django/core/mail/backends/smtp.py", line 110, in _send self.connection.sendmail(from_email, recipients, message.as_bytes()) File "/usr/lib/python2.6/site-packages/Django-1.6.11-py2.6.egg/django/core/mail/message.py", line 138, in as_string return fp.getvalue() File "/usr/lib64/python2.6/StringIO.py", line 270, in getvalue self.buf += ''.join(self.buflist) UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 400: ordinal not in range(128) What operating system are you using? What browser? centos 2.6.32-504.23.4.el6.x86_64 Chrome Version 44.0.2403.157 m