SMTPlib help

[tpolim008]

it looks as though your connection is not working.
there are probably other exceptions that aren't being shown.

change your exception routine to:

except Exception as e:
    print("ERROR ", str(e))
    logger.error('message')
    raise

AH thank you many more errors.... I can say I do have a route to my mail relay server as well and dscp markings are correct from the network side as well.

[tpolim001@srv01 ~]$ ./pncnetworktest.py 

Printing each pncnetwork record
 Beltway, 2020-04-26 23:18:13
Keystone, 2020-04-26 23:49:13
Freedom, 2020-04-26 23:00:19
New England, 2020-04-26 23:50:24

NAME PNCChecker-2020-04-27 19:10:00.txt
PATH /opt/scripts/output/PNCChecker-2020-04-27 19:10:00.txt
ERROR  [Errno 113] No route to host
Traceback (most recent call last):
  File "./pncnetworktest.py", line 68, in <module>
    s = smtplib.SMTP('mailrelay.xxxxxxxx.net')
  File "/usr/lib64/python3.6/smtplib.py", line 251, in __init__
    (code, msg) = self.connect(host, port)
  File "/usr/lib64/python3.6/smtplib.py", line 336, in connect
    self.sock = self._get_socket(host, port, self.timeout)
  File "/usr/lib64/python3.6/smtplib.py", line 307, in _get_socket
    self.source_address)
  File "/usr/lib64/python3.6/socket.py", line 724, in create_connection
    raise err
  File "/usr/lib64/python3.6/socket.py", line 713, in create_connection
    sock.connect(sa)
OSError: [Errno 113] No route to host
[tpolim001@srv01 ~]$