To reply, visit https://hellosplat.com/s/beanbag/tickets/4438/

New ticket #4438 by torcolvin
For Beanbag, Inc. > Review Board

Status: New
Tags: Priority:Medium, Type:Defect

sending emails fails with excessively large number of files

# What version are you running?

# What steps will reproduce the problem?
(This problem is admittedly unlikely to happen with anything other than 
reviewing autogenerated code.)
1. File a review request with 400 files with file names with ~100 charcter names
2. Publish review request
3. Fail to receive email and note server log

# What is the expected output? What do you see instead?

The size is pathologically large since 
"/scr/rb/lib/python2.7/site-packages/reviewboard/notifications/email.py", line 
694, in send_review_mail
  File "/scr/rb/lib/python2.7/site-packages/django/core/mail/message.py", line 
276, in send
    return self.get_connection(fail_silently).send_messages([self])
  File "/scr/rb/lib/python2.7/site-packages/django/core/mail/backends/smtp.py", 
line 94, in send_messages
    sent = self._send(message)
  File "/scr/rb/lib/python2.7/site-packages/django/core/mail/backends/smtp.py", 
line 110, in _send
    self.connection.sendmail(from_email, recipients, message.as_bytes())
  File "/usr/lib64/python2.7/smtplib.py", line 720, in sendmail
    raise SMTPDataError(code, resp)
SMTPDataError: (552, '5.6.0 Headers too large (32768 max)')

# What operating system are you using? What browser?

centos 7, sendmail

# Please provide any additional information below.

The header file is large since we add:

- X-ReviewBoard-Diff-For : full/path/to/filename

for each file

Obviously it's not possible for a human to meaningfully review all these files 
but the default MaxHeaderSize for sendmail on redhat systems is 32768 and may 
be different for other mail servers. It might make sense to truncate including 
filenames in headers of there is a large number of files.


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