Python: Checking the MX records for a list of domains keeps running, then stopping unless I hit Ctrl+C?

Question

I have an Excel spreadsheet of domains that I need to check for a valid MX record. It runs for the first 10 lines, then pauses, then runs again for the next 10 lines, then pauses, then runs for the next 41 lines, then pauses, so there's not really a pattern that's making sense to me.

Do I need to tell it "Hey, if you don't find an mx record in x seconds, move on", or is there a better way entirely of running this code?

import pandas as pd import dns.resolver def getListOfDomains(): data_df= pd.read_excel('check.xlsx') #todo: mainRun passes name of file into run df = pd.DataFrame(data_df) result= df.drop_duplicates(subset=['domain']) for index, row in df.iterrows(): TryString= str(row['domain']) try: check= dns.resolver.query(TryString, 'MX') print check.response except: print "No MX here"

How long should I expect a pause before giving up? Or, how can I edit it so if no response is received in x seconds, continue? — Sam W
– Sam W, Commented Jul 6, 2017 at 12:04

stovfl · Accepted Answer · 2017-07-06 12:57:45Z

Question; Do I need to tell it "... x seconds, move on", ...

There is no guarantee that dns.resolver.query(... return immediately.
The Pause is normal behavior awaiting a response

Comment: ... how can I ... if no response is received in x seconds, continue?

Read this SO Answer: Dnspython: Setting query timeout/lifetime

Collectives™ on Stack Overflow

Python: Checking the MX records for a list of domains keeps running, then stopping unless I hit Ctrl+C?

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related