Well,
Something must be going on with the emails.
I get this when trying to send an email with my newly created outgoing email server:
Traceback (innermost last):
File "/home/erpnext/frappe-bench/apps/frappe/frappe/app.py", line 51, in application
response = frappe.handler.handle()
File "/home/erpnext/frappe-bench/apps/frappe/frappe/handler.py", line 62, in handle
execute_cmd(cmd)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/handler.py", line 85, in execute_cmd
ret = frappe.call(method, **frappe.form_dict)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/__init__.py", line 712, in call
return fn(*args, **newargs)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/core/doctype/communication/communication.py", line 215, in make
comm.send(print_html, print_format, attachments)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/core/doctype/communication/communication.py", line 51, in send
self.notify(self.get_email(print_html, print_format, attachments))
File "/home/erpnext/frappe-bench/apps/frappe/frappe/core/doctype/communication/communication.py", line 62, in get_email
self.set_incoming_outgoing_accounts()
File "/home/erpnext/frappe-bench/apps/frappe/frappe/core/doctype/communication/communication.py", line 91, in set_incoming_outgoing_accounts
self.incoming_email_account = frappe.db.get_value("Email Account", {"incoming_email_account": 1}, "email_id")
File "/home/erpnext/frappe-bench/apps/frappe/frappe/database.py", line 390, in get_value
ret = self.get_values(doctype, filters, fieldname, ignore, as_dict, debug)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/database.py", line 425, in get_values
return self._get_values_from_table(fields, filters, doctype, as_dict, debug, order_by, update)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/database.py", line 516, in _get_values_from_table
conditions, order_by), values, as_dict=as_dict, debug=debug, update=update)
File "/home/erpnext/frappe-bench/apps/frappe/frappe/database.py", line 129, in sql
self._cursor.execute(query, values)
File "/home/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute
self.errorhandler(self, exc, value)
File "/home/erpnext/frappe-bench/env/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
raise errorclass, errorvalue
OperationalError: (1054, "Unknown column 'incoming_email_account' in 'where clause'")