Comment 5 for bug 1808236

updated to 18.12.13.134 and ran unity-mail and nothing still not starting. Did your recommended previous steps and again nothing. Running it from a terminal generates:

Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
Traceback (most recent call last):
  File "/usr/bin/unity-mail", line 22, in <module>
    UnityMail(len(sys.argv) == 2 and sys.argv[1] == 'debug')
  File "/usr/lib/python3/dist-packages/unitymail/application.py", line 477, in __init__
    self.initKeyring()
  File "/usr/lib/python3/dist-packages/unitymail/application.py", line 686, in initKeyring
    self.openDialog()
  File "/usr/lib/python3/dist-packages/unitymail/application.py", line 757, in openDialog
    self.dlgSettings.run()
  File "/usr/lib/python3/dist-packages/unitymail/dialog.py", line 465, in run
    self.updateEntries()
  File "/usr/lib/python3/dist-packages/unitymail/dialog.py", line 554, in updateEntries
    self.oEntryInboxAppend.set_text(self.lstDicts[nIndex]['InboxAppend'])
KeyError: 'InboxAppend'