Email Pull Error

I activate ERPNext in my local environment and use it to manage customer issue via email, but since i start i get many error log such as:
{'retry': 0, 'log': <function log at 0xb5ef2a3c>, 'site': u'site1.local', 'event': u'all', 'method_name': u'pull_from_email_account', 'method': <function pull_from_email_account at 0xb5e77dbc>, 'user': u'Administrator', 'kwargs': {'email_account': u'Customer Care | EVS'}, 'async': True, 'job_name': u'pull_from_email_account|Customer Care | EVS'} Traceback (most recent call last): File "/home/EVS/frappe-bench/apps/frappe/frappe/utils/background_jobs.py", line 61, in execute_job method(**kwargs) File "/home/EVS/frappe-bench/apps/frappe/frappe/email/doctype/email_account/email_account.py", line 487, in pull_from_email_account email_account.receive() File "/home/EVS/frappe-bench/apps/frappe/frappe/email/doctype/email_account/email_account.py", line 191, in receive incoming_mails = email_server.get_messages() File "/home/EVS/frappe-bench/apps/frappe/frappe/email/receive.py", line 101, in get_messages if not self.connect(): File "/home/EVS/frappe-bench/apps/frappe/frappe/email/receive.py", line 40, in connect return self.connect_imap() File "/home/EVS/frappe-bench/apps/frappe/frappe/email/receive.py", line 48, in connect_imap self.imap = Timed_IMAP4_SSL(self.settings.host, timeout=frappe.conf.get("pop_timeout")) File "/home/EVS/frappe-bench/apps/frappe/frappe/email/receive.py", line 423, in __init__ self._super.__init__(self, *args, **kwargs) File "/usr/lib/python2.7/imaplib.py", line 1165, in __init__ IMAP4.__init__(self, host, port) File "/usr/lib/python2.7/imaplib.py", line 172, in __init__ self.open(host, port) File "/usr/lib/python2.7/imaplib.py", line 1176, in open self.sock = socket.create_connection((host, port)) File "/usr/lib/python2.7/socket.py", line 553, in create_connection for res in getaddrinfo(host, port, 0, SOCK_STREAM): gaierror: [Errno -2] Name or service not known

and

{'retry': 0, 'log': <function log at 0xb5ef2a3c>, 'site': u'site1.local', 'event': u'all', 'method_name': u'pull_from_email_account', 'method': <function pull_from_email_account at 0xb5e77dbc>, 'user': u'Administrator', 'kwargs': {'email_account': u'Customer Care | EVS'}, 'async': True, 'job_name': u'pull_from_email_account|Customer Care | EVS'} Traceback (most recent call last): File "/home/EVS/frappe-bench/apps/frappe/frappe/utils/background_jobs.py", line 61, in execute_job method(**kwargs) File "/home/EVS/frappe-bench/apps/frappe/frappe/email/doctype/email_account/email_account.py", line 487, in pull_from_email_account email_account.receive() File "/home/EVS/frappe-bench/apps/frappe/frappe/email/doctype/email_account/email_account.py", line 191, in receive incoming_mails = email_server.get_messages() File "/home/EVS/frappe-bench/apps/frappe/frappe/email/receive.py", line 109, in get_messages email_list = self.get_new_mails() File "/home/EVS/frappe-bench/apps/frappe/frappe/email/receive.py", line 157, in get_new_mails self.imap.select("Inbox") File "/usr/lib/python2.7/imaplib.py", line 661, in select typ, dat = self._simple_command(name, mailbox) File "/usr/lib/python2.7/imaplib.py", line 1087, in _simple_command return self._command_complete(name, self._command(name, *args)) File "/usr/lib/python2.7/imaplib.py", line 911, in _command_complete raise self.abort('command: %s => %s' % (name, val)) abort: command: SELECT => System Error

after this error Email Account disable incoming mail option automatically

any suggsiton regard this.

Seems like a connection / authentication error.

yes it seem connection issue, we change the schedule interval form 150 to 300 and until now we didn’t face any issue.

but i don’t why the system disabled incoming mail after this error occur?