Comment 5 for bug 795798

When I run popper.py on a terminal, I get:
'Checking email accounts at: Wed Sep 7 17:31:21 2011
Traceback (most recent call last):
  File "/usr/share/popper/popper.py", line 1219, in <module>
    if __name__ == '__main__': main()
  File "/usr/share/popper/popper.py", line 1209, in main
    indicator.timeout() # immediate check, firstcheck=True
  File "/usr/share/popper/popper.py", line 545, in timeout
    self.mail_list = self.mails.get_mail(self.sort_order) # get all mails from all inboxes
  File "/usr/share/popper/popper.py", line 280, in get_mail
    mail_total = len(srv.list()[1]) # number of mails on the server
  File "/usr/lib/python2.7/poplib.py", line 216, in list
    return self._longcmd('LIST')
  File "/usr/lib/python2.7/poplib.py", line 159, in _longcmd
    return self._getlongresp()
  File "/usr/lib/python2.7/poplib.py", line 135, in _getlongresp
    resp = self._getresp()
  File "/usr/lib/python2.7/poplib.py", line 128, in _getresp
    raise error_proto(resp)
poplib.error_proto: -ERR Exceeded the login limit for a 15 minute period. Reduce the frequency of requests to the POP3 server.'

popper.log has no useful information, just the times of the latest checks, like 'Checking email accounts at: Wed Sep 7 15:29:57 2011'.