DNS MX record lookup on Oreo and above

Asked Oct 01 '18 at 14:14

Active Oct 01 '18 at 14:39

Viewed 265 times

On lookup dns mx records an the android OS8 platform, I am always getting null on new Lookup("gmail.com", Type.MX).run(). I am using dnsjava-2.1.8.jar (http://www.dnsjava.org/)

Record[] mxRecords = new Lookup("gmail.com", Type.MX).run();
for (Record mxRecord : mxRecords) {
    MXRecord mx = (MXRecord) mxRecord;
    targets.add(mx.getTarget().toString());
}

I have internet permission in manifest.

edited Oct 01 '18 at 14:39

Phantômaxx

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asked Oct 01 '18 at 14:14

MaxTycoon

Where are you getting null? `run()`, `mxRecord`, `targets`, `getTarget()`? – TheWanderer Oct 01 '18 at 14:19
Which query, for what domain? Can you reproduce the result when trying from another host? Not all domains have `MX` records... – Patrick Mevzek Oct 01 '18 at 14:21
1

@TheWanderer I am getting null at run() – MaxTycoon Oct 01 '18 at 14:24
@PatrickMevzek I am checking for gmail.com. Updated my question. – MaxTycoon Oct 01 '18 at 14:24
Possibly related to DNS privacy changes from Android 8.0. https://developer.android.com/about/versions/oreo/android-8.0-changes – user3144836 Oct 08 '18 at 01:43
@user3144836 I have this problem aswell, any update on this? I dont see "net.hostname" in the dnsjava codebase – urSus Oct 17 '18 at 01:57
@urSus Unfortunately there are no updates yet. – user3144836 Oct 18 '18 at 01:07
@user3144836 youll need to for the dnsjava and replace findAndroid method with the connectivitymanager api – urSus Oct 19 '18 at 03:55

DNS MX record lookup on Oreo and above

0 Answers0