functional tests of spf dependent on live domain TXT records

[nresare]

Version information

Latest master, 6740c10

Steps to replicate

1. Run the spf functional tests: PYTHONPATH=. py.test tests/functional/test_plugins/test_spf.py

Actual result

A bunch of failures where SPF_SOFTFAIL is expected but SPF_FAIL is observed

Expected result

No failures

Other notes

There is a repeated pattern in functional/test_plugins/test_spf.py where an SPF lookup is performed for a received line containing an envelope-from <test@spamexperts.com>, for the dummy IP 1.2.3.4 as receiving IP. I'm assuming that the TXT record for spamexperts.com that defines it's SPF policy has changed since the test was constructed.

I think that it is fine to do online lookup of actual domain names in functional tests, but it seems unfortunate to do it with a dns name that might change in the future (as illustrated by the spamexperts.com example). I would be happy to set up some records under resare.com (a domain that I have had for almost 20 years now) that exist specifically for this purpose and that wouldn't change over time. A better option might be to create some proper TXT or SPF records under spamexperts.com.