introduce 100ms delay

send.py

@@ -5,12 +5,13 @@ import os
 import smtplib
 import sys
 import traceback
+from time import sleep
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 
 from config import FROM, RECIPIENTS, SUBJECT, TXT_TEMPLATE, LOGIN, PASSWORD, HOST, PORT, SSL, TLS, HTML_TEMPLATE, ENCODING, REPLY_TO
 
-logging.basicConfig()
+logging.basicConfig(format='%(asctime)s.%(msecs)03d %(levelname)-8s %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
 logging.getLogger().setLevel(logging.INFO)
 
 logger = logging.getLogger(__name__)
@@ -85,6 +86,7 @@ with open(RECIPIENTS) as csv_file:
                     FROM, [recipient, FROM], message.as_string()
                 )
                 logger.info("Mail sent successfully to: " + recipient)
+                sleep(0.1)
 
         except:
             traceback.print_exc(file=sys.stdout)