Testsuite: DNS lookup notes

diff --git a/test/scripts/4600-SPF/4600 b/test/scripts/4600-SPF/4600
index 58239487978e6957243e62ce3959d96f1bc45fa7..8490288e19dd3a186c2a41c78b2e07de5ebaaa0c 100644 (file)
--- a/test/scripts/4600-SPF/4600
+++ b/test/scripts/4600-SPF/4600
@@ -3,6 +3,10 @@
 # The 127.0.0.1 source addr seems to be a builtin in the spf library; no dns lookup is done.
 # HOSTIPV4 does get a series of lookups (see server debug output to verify that).
 #
+# The libspf2 object stack is built with an exim-specific DNS lookup base object,
+# so the testsuite intercept to fakedns works.  Be careful of names and addresses
+# used, as nonhandled lookups are passed on to real DNS.
+#
 exim -bd -DSERVER=server -oX PORT_D:PORT_S:PORT_N
 ****
 client 127.0.0.1 PORT_S

diff --git a/test/scripts/4650-DMARC/4650 b/test/scripts/4650-DMARC/4650
index 85d9e51cc930304b34248ea57799c3bf1a3a3f2a..5526a8bbe8f1d1b85ceea3136ea51f547e6ec2da 100644 (file)
--- a/test/scripts/4650-DMARC/4650
+++ b/test/scripts/4650-DMARC/4650
@@ -1,11 +1,10 @@
 # acl variables and authresults
 #
-# SPF is a problem.  We use libspf2 to do the work, and it
-# does the DNS lookups, so we cannot intercept them in the testsuite's usual fashion
-# to provide values for testcases.
-#
 # For now just check that what should be working syntax does not cause us to fall over.
-# Be careful with envelope-domains used for testcases, as real DNS lookups will be done.
+#
+# SPF and DMARC lookups in DNS are diverted into the testsuite fakedns handling.
+# Be careful with envelope-domains used for testcases, as real DNS lookups will be done
+# for names not provided for in fakedns.
 #
 exim -bd -DSERVER=server -oX PORT_D
 ****